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John D. Menna

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September 2025


John Menna is a veteran in safety engineering and regulatory affairs leader with more than 35 years safeguarding people and operations across the U.S. Department of Energy’s nuclear defense complex. He is the founder of Principled Safety LLC and the creator of the Principled Safety® methodology, a standards-based approach that translates high-reliability safety practices into clear, repeatable processes for complex environments.

Menna applies high-hazard safety disciplines to K–12 by translating safety-case thinking into school shooting protocols: rigorous scenario analysis, clearly defined safety functions, performance-based metrics, and defense-in-depth that spans design, policy, and daily practice. His objective is prevention of harm thro
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Average rating: 4.40 · 5 ratings · 3 reviews · 1 distinct work
Before the Next Tragedy: Pr...

4.40 avg rating — 5 ratings — 4 editions
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John’s Recent Updates

John Menna shared a quote
Before the Next Tragedy by John D. Menna
“The goal is not to make every school the same. The goal is to give every school a disciplined way to understand its own risks and strengthen its protections accordingly.”
John D. Menna
John Menna shared a quote
Before the Next Tragedy by John D. Menna
“School safety needs a framework, not another checklist”
John D. Menna
John Menna shared a quote
Before the Next Tragedy by John D. Menna
“Safety fails when “minimizing harm” becomes the goal”
John D. Menna
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Quotes by John D. Menna  (?)
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“Safety in our schools must be built around the belief that harm is preventable. Even when efforts fail to detect and foil a plot to target a school, preventing harm is still achievable and must remain the goal.”
― John D. Menna

“The goal is not to make every school the same. The goal is to give every school a disciplined way to understand its own risks and strengthen its protections accordingly.”
― John D. Menna, Before the Next Tragedy: Preventing Harm in School Shooting Scenarios

“Safety in our schools must be built around the belief that harm is preventable. Even when efforts fail to detect and foil a plot to target a school, preventing harm is still achievable and must remain the goal.”
― John D. Menna

“The goal is not to make every school the same. The goal is to give every school a disciplined way to understand its own risks and strengthen its protections accordingly.”
― John D. Menna, Before the Next Tragedy: Preventing Harm in School Shooting Scenarios

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