In the aftermath of catastrophes, it is common to find prior indicators, missed signals, and dismissed alerts that, had they been recognized and appropriately m

Close calls, narrow escapes, or near hits. History has shown repeatedly that these "near-miss" incidents often precede loss producing events, but are largely ig

Every day in the United States, over two million men, women, and children step onto an aircraft and place their lives in the hands of strangers. As anyone who h

System safety is the application of engineering and management principles, criteria, and techniques to optimize safety within the constraints of operational eff

Improvised explosive devices (IEDs) are a type of unconventional explosive weapon that can be deployed in a variety of ways, and can cause loss of life, injury,