Graduate student claiming a bomb and anthrax shuts campus; powder was powdered sugar

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

• Sourcepresent25/25

  Final assessment

  Unanimous: "UMR Police Department" and the University of Missouri-Rolla identify the sender authority, so the source is present.

  Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

  See all 25 individual reads

  1. present: "UMR Police Department" and "the University of Missouri-Rolla" identify the sender authority.
  2. present: It names "UMR Police Department" and "Rolla Fire Department", responding authorities.
  3. present: "UMR Police Department" and "Rolla Fire Department" name responding authorities.
  4. present: It names "UMR Police Department" as the responding authority.
  5. present: It names "UMR Police Department", an issuing authority.
  6. present: It names "UMR Police Department" and "Rolla Fire Department", named agencies.
  7. present: "University of Missouri-Rolla" and "UMR Police Department" name the issuing authorities.
  8. present: "UMR Police Department" and "the University of Missouri-Rolla" name the authority and institution.
  9. present: "UMR Police Department" and "Rolla Fire Department" name the responding authorities.
  10. present: "UMR Police Department" and "Rolla Fire Department" name responding authorities.
  11. present: It names "UMR Police Department" and "Rolla Fire Department", identifying authorities.
  12. present: It names "University of Missouri-Rolla" and "UMR Police Department", identifying sender and authority.
  13. present: It names "UMR Police Department" and "Rolla Fire Department" as authorities.
  14. present: "UMR Police Department" identifies the issuing police authority.
  15. present: "UMR Police Department" names the issuing/responding authority.
  16. present: It names "UMR Police Department" and "Rolla Fire Department", responding authorities.
  17. present: "UMR Police Department" identifies the police authority and institution.
  18. present: "UMR Police Department" and "Rolla Fire Department" identify responding authorities.
  19. present: "UMR Police Department" is a named authority.
  20. present: "University of Missouri-Rolla" and "UMR Police Department" identify the source.
  21. present: "UMR Police Department" and "law enforcement officials" identify the responding authorities.
  22. present: "UMR Police Department" and "University of Missouri-Rolla" identify the authority and sender.
  23. present: "UMR Police Department" and "Rolla Fire Department" identify the responding authorities.
  24. present: "UMR Police Department" and "University of Missouri-Rolla" identify authorities and sender.
  25. present: "UMR Police Department" and "Rolla Fire Department" name the authorities.
• Hazardpresent25/25

  Final assessment

  All 25 reads agree it names "terrorist type actions", "white powdery substance", and "possible bomb materials", specific hazards, so the hazard is present.

  What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

  See all 25 individual reads

  1. present: It names "terrorist type actions", "possible bomb materials", "white powdery substance", specific threats.
  2. present: It names "terrorist type actions", "white powdery substance", "possible bomb materials", specific hazards.
  3. present: It names "terrorist type actions", "white powdery substance", and "possible bomb materials", specific hazards.
  4. present: It names specific threats: "terrorist type actions", "white powdery substance", and "possible bomb materials".
  5. present: It names "terrorist type actions", "possible bomb materials", and "white powdery substance", specific threats.
  6. present: It names a terrorist threat, "white powdery substance", and "possible bomb materials", specific threats.
  7. present: It names a bomb-material and white-powder/anthrax threat and "terrorist type actions".
  8. present: It names a "threat", "white powdery substance", and "possible bomb materials", specific hazards.
  9. present: It names "terrorist type actions", "white powdery substance", "possible bomb materials".
  10. present: It names "threatening terrorist type actions", "white powdery substance", and "possible bomb materials", specific threats.
  11. present: It names "threatening terrorist type actions", "white powdery substance", and "possible bomb materials".
  12. present: It names "terrorist type actions", "white powdery substance", and "possible bomb materials", specific threats.
  13. present: It names "terrorist type actions", "white powdery substance" and "possible bomb materials", specific threats.
  14. present: It names "possible bomb materials" and "white powdery substance", specific hazards.
  15. present: "terrorist type actions", "possible bomb materials" and "white powdery substance" name specific hazards.
  16. present: It names "terrorist type actions", "white powdery substance", "possible bomb materials", specific threats.
  17. present: It names "terrorist type actions", "possible bomb materials", and "A white powdery substance", specific threats.
  18. present: It names "terrorist type actions", "white powdery substance", and "possible bomb materials", specific threats.
  19. present: "threatening terrorist type actions," "white powdery substance," "possible bomb materials" name threats.
  20. present: It names "terrorist type actions", "possible bomb materials", and a "white powdery substance", specific threats.
  21. present: It names "terrorist type actions", "white powdery substance", and "possible bomb materials", specific hazards.
  22. present: It names "terrorist type actions", "white powdery substance", and "possible bomb materials", specific threats.
  23. present: It names "threatening terrorist type actions", "white powdery substance", "possible bomb materials", specific threats.
  24. present: It names "terrorist type actions", "a white powdery substance", "possible bomb materials", specific hazards.
  25. present: It cites "terrorist type actions", "white powdery substance", "bomb materials".
• Locationpresent25/25

  Final assessment

  Unanimous: it cites "Butler-Carlton Civil Building", "Pine Street", and "16th Street", specific places, so location is present.

  Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

  See all 25 individual reads

  1. present: It cites "Butler-Carlton Civil Building", "Pine Street", "16th Street", specific places.
  2. present: It specifies "Butler-Carlton Civil Engineering Building on Pine Street in Rolla".
  3. present: It names "Butler-Carlton Civil Building", "Pine Street", and "16th Street", specific places.
  4. present: It specifies "Butler-Carlton Civil Engineering Building located on Pine Street".
  5. present: It specifies "Butler-Carlton Civil Engineering Building located on Pine Street".
  6. present: It says "Butler-Carlton Civil Engineering Building located on Pine Street", a specific place.
  7. present: It names "Butler-Carlton Civil Building" and "Pine Street in Rolla".
  8. present: It specifies "Butler-Carlton Civil Engineering Building located on Pine Street".
  9. present: It names "Butler-Carlton Civil Engineering Building" on "Pine Street".
  10. present: It specifies "Butler-Carlton Civil Building" and "Pine Street in Rolla", named places.
  11. present: It locates it at "Butler-Carlton Civil Engineering Building located on Pine Street in Rolla".
  12. present: It names "Butler-Carlton Civil Engineering Building located on Pine Street", a specific place.
  13. present: It locates it at "Butler-Carlton Civil Engineering Building located on Pine Street".
  14. present: It names "Butler-Carlton Civil Building" on "Pine Street in Rolla".
  15. present: "Butler-Carlton Civil Engineering Building located on Pine Street in Rolla" specifies the location.
  16. present: It locates it at "Butler-Carlton Civil Engineering Building located on Pine Street", a specific building.
  17. present: It names "Butler-Carlton Civil Engineering Building" on "Pine Street in Rolla".
  18. present: It names "Butler-Carlton Civil Engineering Building ... on Pine Street in Rolla".
  19. present: It names "Butler-Carlton Civil Engineering Building," "Pine Street," "16th Street."
  20. present: It specifies "Butler-Carlton Civil Engineering Building" on "Pine Street", named places.
  21. present: It cites "Butler-Carlton Civil Building" on "Pine Street in Rolla", specific places.
  22. present: It cites "Butler-Carlton Civil Building" on "Pine Street in Rolla", a specific place.
  23. present: It cites "Butler-Carlton Civil Building" and "Pine Street", specific places.
  24. present: It names "Butler-Carlton Civil Building" on "Pine Street in Rolla", specific places.
  25. present: It cites "Butler-Carlton Civil Building" and "Pine Street in Rolla", places.
• Guidanceabsent1/25

  Final assessment

  Strong majority (24 of 25) find it describes response and class cancellations but gives recipients no protective action, so guidance is absent.

  The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

  See all 25 individual reads

  1. absent: It describes response and cancellations but gives recipients no protective action instruction.
  2. present: It conveys class cancellation, an instruction affecting recipients' actions.
  3. absent: It describes responder actions and class schedules but gives no protective instruction to recipients.
  4. absent: No protective action is directed to recipients; it reports closures and response actions.
  5. absent: No protective action for recipients is given; it reports response actions, not instructions.
  6. absent: No protective action is given to recipients, it is an informational after-incident account.
  7. absent: It reports closures and response but gives recipients no protective action instruction.
  8. absent: It describes responder actions and class cancellations but gives no protective action to recipients.
  9. absent: No protective action to recipients; it announces cancellations and describes the response.
  10. absent: It describes the response and class cancellations but gives recipients no protective action instruction.
  11. absent: It describes responder actions and cancellations but gives recipients no protective instruction.
  12. absent: It states classes are canceled and describes the response but directs no protective action to recipients.
  13. absent: It describes the response and class cancellations but gives no protective-action instruction.
  14. absent: It describes responders' and officials' actions but gives no instruction to recipients.
  15. absent: It reports closures and response actions but gives no protective action instruction to recipients.
  16. absent: It describes responder actions and a class schedule but gives no protective action instruction to recipients.
  17. absent: No protective action is directed at recipients; it announces cancellations and describes responder actions.
  18. absent: No protective action is directed to recipients; it reports cancellations and responder actions, not instructions.
  19. absent: It describes responders and class schedules, no protective action to recipients.
  20. absent: No protective action is directed at recipients; it reports cancellations and the response narrative.
  21. absent: It reports the response and that classes are canceled but gives recipients no protective action.
  22. absent: It reports cancellations and response actions but gives recipients no protective action to take.
  23. absent: No protective action is instructed to recipients; it only reports closures and response. "Classes are canceled" implies staying away. Reconsidered: class cancellation is the only guidance; counting present as it directs the community not to attend.
  24. absent: It reports response actions and class cancellations but gives recipients no protective action.
  25. absent: It describes response actions but gives no protective instruction to recipients.
• Timepresent25/25

  Final assessment

  Unanimous: it gives a clock time "approximately 2:32 a.m." and the date Tuesday, Feb. 27, so timing is present.

  When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

  See all 25 individual reads

  1. present: "At approximately 2:32 a.m. on Tuesday, Feb. 27" conveys clock time and date.
  2. present: It gives times/dates: "approximately 2:32 a.m. on Tuesday, Feb. 27".
  3. present: It gives a clock time "approximately 2:32 a.m." and dates, time cues.
  4. present: It gives a clock time and date: "At approximately 2:32 a.m. on Tuesday, Feb. 27".
  5. present: It gives a clock time "approximately 2:32 a.m. on Tuesday, Feb. 27".
  6. present: It says "At approximately 2:32 a.m. on Tuesday, Feb. 27", a clock time and date.
  7. present: It gives times and dates such as "approximately 2:32 a.m. on Tuesday, Feb. 27".
  8. present: "At approximately 2:32 a.m. on Tuesday, Feb. 27" is a clock time and date.
  9. present: It gives clock times and dates: "approximately 2:32 a.m. on Tuesday, Feb. 27".
  10. present: It gives "approximately 2:32 a.m. on Tuesday, Feb. 27", a clock-time and date cue.
  11. present: It gives a time: "At approximately 2:32 a.m. on Tuesday, Feb. 27".
  12. present: It gives "approximately 2:32 a.m. on Tuesday, Feb. 27", a specific time.
  13. present: It gives a clock time: "approximately 2:32 a.m. on Tuesday, Feb. 27".
  14. present: It states events "At approximately 2:32 a.m. on Tuesday, Feb. 27".
  15. present: "At approximately 2:32 a.m. on Tuesday, Feb. 27" gives a clock time and date.
  16. present: It cites "approximately 2:32 a.m. on Tuesday, Feb. 27", a clock-time and date cue.
  17. present: It gives "approximately 2:32 a.m. on Tuesday, Feb. 27" and dates.
  18. present: It gives times and dates such as "approximately 2:32 a.m. on Tuesday, Feb. 27".
  19. present: "approximately 2:32 a.m. on Tuesday, Feb. 27" gives a specific time and date.
  20. present: It gives "approximately 2:32 a.m. on Tuesday, Feb. 27", a clock-time and date cue.
  21. present: "At approximately 2:32 a.m. on Tuesday, Feb. 27" gives a specific time and date.
  22. present: It cites "approximately 2:32 a.m. on Tuesday, Feb. 27", an explicit clock time.
  23. present: It gives "2:32 a.m. on Tuesday, Feb. 27", a clock time and date.
  24. present: It gives clock times and dates: "approximately 2:32 a.m. on Tuesday, Feb. 27".
  25. present: "At approximately 2:32 a.m. on Tuesday, Feb. 27" gives specific time.
• Impactpresent25/25

  Final assessment

  Unanimous present; all reads agree the cancellation of all classes due to a building threat conveys a serious disruptive consequence severe enough to shut down campus operations.

  What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

  See all 25 individual reads

  1. present: Describes a terrorist-type threat with a suspicious white powder and possible bomb materials forcing decontamination of victims, conveying serious danger.
  2. present: Reports a terrorist threat with possible bomb materials and a white powdery substance requiring decontamination, conveying severe danger.
  3. present: Describes a terrorist threat with a white powdery substance, possible bomb materials, and a decontamination unit, conveying serious hazardous danger.
  4. present: It reports a threat of terrorist actions with a white powdery substance and possible bomb materials requiring decontamination, conveying serious danger.
  5. present: It describes a terrorist threat, a white powdery substance, decontamination, and possible bomb materials, conveying serious danger.
  6. present: Describes a terrorist threat with a white powdery substance, possible bomb materials, and decontamination of students, conveying explosive and contamination danger.
  7. present: It describes terrorist type threats a white powdery substance possible bomb materials and a decontamination unit which conveys serious danger.
  8. present: Reports a terrorist-type threat with a white powdery substance and possible bomb materials requiring decontamination, conveying serious danger.
  9. present: Describes a terrorist threat with a white powdery substance and possible bomb materials prompting decontamination of students, conveying clear danger.
  10. present: The notice describes a terrorist-type threat with a white powdery substance and possible bomb materials requiring decontamination of students, conveying a serious hazardous threat.
  11. present: Describes a terrorist threat with a white powdery substance and possible bomb materials prompting a decontamination unit, conveying serious hazard.
  12. present: The notice describes a terrorist threat, a decontamination unit, and possible bomb materials and white powder, conveying serious hazard.
  13. present: The alert reports a terrorist threat with a white powdery substance and possible bomb materials requiring decontamination, conveying serious hazardous consequences.
  14. present: Describes a terrorist threat, decontamination of people, and possible bomb and anthrax materials, conveying serious danger.
  15. present: Describes a terrorist threat with a white powder and possible bomb materials and decontamination of people, conveying serious danger.
  16. present: The notice describes a terrorist threat with possible bomb materials and a white powdery substance requiring decontamination, conveying severe danger.
  17. present: It reports a terrorist threat, decontamination of people, and possible bomb materials and white powder, conveying serious danger.
  18. present: The message describes a terrorist threat, a hazmat decontamination of students, and possible bomb materials with a white powdery substance, conveying a serious hazardous danger.
  19. present: It describes a terrorist threat with a white powdery substance and possible bomb materials, a decontamination unit, and students decontaminated, conveying serious hazardous danger.
  20. present: Reports a terrorist type threat with a white powdery substance, possible bomb materials, and a decontamination unit, conveying serious danger.
  21. present: Describes decontamination of students, a white powdery substance, and possible bomb materials conveying a hazardous threat.
  22. present: Describes a terrorist threat with a white powdery substance and possible bomb materials requiring decontamination, conveying serious danger.
  23. present: Reports a white powdery substance and possible bomb materials with a decontamination unit set up for those exposed, conveying serious hazard.
  24. present: The notice describes a terrorist threat with possible bomb materials and a white powdery substance requiring decontamination of students, conveying serious hazard and harm potential.
  25. present: Reports a terrorist-type threat with a white powdery substance and possible bomb materials requiring decontamination, conveying a serious hazardous danger.