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September 11 Attacks: Facts, Background & Impact - HISTORY
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https://www.history.com/topics/21st-century/9-11-attacks#where-did-the-planes-takeoff-from
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The Four Planes of 9/11 | Motley Rice
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American Airlines Flight 11 - Wikipedia
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9/11 anniversary: Who were the September 11th attackers and what are the links with the new Taliban regime? | World News | Sky News
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Spotlight: The Worrying Spike In School Shootings Across America - Biometrica Systems, Inc.
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All Shootings
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School Shootings This Year: How Many and Where
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https://www.edweek.org/leadership/school-shootings-this-year-how-many-and-where/2022/01
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How To Stop Shootings and Gun Violence in Schools: A Plan to Keep Students Safe | Everytown Research & Policy
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https://everytownresearch.org/report/how-to-stop-shootings-and-gun-violence-in-schools/
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Our Lady of the Angels School Fire - Major American Fires - LibGuides at University of Illinois at Urbana-Champaign
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https://guides.library.illinois.edu/c.php?g=348303&p=2346978
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Protecting_Americas_Schools.pdf
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https://www.secretservice.gov/sites/default/files/2020-04/Protecting_Americas_Schools.pdf
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101 American School Statistics: 2023 Data, Trends & Predictions | Research.com
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https://research.com/education/american-school-statistics#total
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Columbine High School Shooting: The Full Story Behind The Tragedy
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Columbine High School massacre – Wikipedia
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https://en.wikipedia.org/wiki/Columbine_High_School_massacre
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List of school shootings in the United States by death toll - Wikipedia
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https://en.wikipedia.org/wiki/List_of_school_shootings_in_the_United_States_by_death_toll
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Scarred Columbine survivors remember 20 year anniversary school shooting 13 dead 21 injured PTSD | Daily Mail Online
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Coach William "Dave" Sanders
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Denver SWAT and Other Officials on-scene at Columbine High School
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Mass shooting | Definition, Statistics, Weapons, & Locations | Britannica
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The Columbine High School Tragedy: The Denver Post
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Propane bomb – Wikipedia
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1949 Act 14 - PA General Assembly
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Building Safety
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https://www.health.pa.gov/topics/facilities/safety/Pages/Building%20Safety.aspx
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United States Fire & Building Codes | The Exit Light Co.
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NFPA 1: Fire Code
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Georgia - Louisiana : Fire Code Enforcement
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THE FINAL REPORT AND FINDINGS OF THE SAFE SCHOOL INITIATIVE:
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https://www2.ed.gov/admins/lead/safety/preventingattacksreport.pdf
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United States Secret Service NATIONAL THREAT ASSESSMENT CENTER MASS ATTACKS IN PUBLIC SPACES - 2019
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https://www.secretservice.gov/sites/default/files/reports/2020-09/MAPS2019.pdf
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Using 3M Safety Films To Secure Windows and Prevent Break-Ins
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https://homealarmreport.com/home-security/3m-safety-films-for-home-security/
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Unreported Information Showing Nikolas Cruz’s Troubling Behavior
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Educational and Architectural Awards Golden Brook Elementary
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https://bydesign.secure-platform.com/a/gallery/rounds/32/details/1105
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Mass shooting in Las Vegas: How it happened - Washington Post
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https://www.washingtonpost.com/graphics/2017/national/las-vegas-shooting/
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9/11 FAQs | National September 11 Memorial & Museum
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“WE HAVE SOME PLANES” 1.1 INSIDE THE FOUR FLIGHTS
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https://govinfo.library.unt.edu/911/report/911Report_Ch1.pdf
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·All flights stopped nationwide
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·The Top Secret Tapes | 9/11: The Final Moments of Flight 93 ...
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·The Warfighters: The 9/11 Aftermath & Impact | History
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United 93 cockpit recorder
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The flight that fought back
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Photos show the smashed windows at the Mandalay Bay hotel where a gunman opened fire on a music festival in Las Vegas
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US ARMY CORP OF ENGINEERS FLOORPLAN SEARCH OF OSAN ELEMENTARY SCHOOL OSAN AIR FORCE BASE
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Slow Motion Tempered Glass Shattering
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Lockly Pro - PGD678W - GUARD - DUO Dual Locking Interconnected Smart Lock - Fingerprint Reader - Phone App - WiFi - Touchscreen - Key Override - Optional Finish
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Fort Lauderdale-Hollywood International Airport Active Shooter Incident and Post-Event Response January 6, 2017 After-Action Report
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MARJORY STONEMAN DOUGLAS HIGH SCHOOL PUBLIC SAFETY COMMISSION
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Mass Shootings at Virginia Tech
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https://scholar.lib.vt.edu/prevail/docs/VTReviewPanelReport.pdf
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COVENANT Massacre Weapons
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https://twitter.com/MNPDNashville/status/1640521034594918400/photo/2
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NASHVILLE STATUS
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CNN COVENANT SCHOOL MASSACRE UPDATES
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https://www.cnn.com/us/live-news/nashville-shooting-covenant-school-03-27-23/index.html