Your article about the campus custodian who reported suspicious behavior that turned out to be that of the suspected gunman ...

Confidential list of behaviors watched by TSA agents was recently leaked online. A TSA document lists exaggerated yawning as a suspicious traveler behavior. Getty Images — -- Excessive yawning, ...

Don't make these mistakes if you want your experience with airport security to go smoothly. While these might seem like normal, common behaviors by flight passengers, if you commit these actions, ...

Some lawmakers sought to understand the often-nuanced delineation. What factors determine a "suspicious" person versus a "threat" has become a hotly debated topic in the wake of the assassination ...

SOMERSET CO., MD - The Worcester County Sheriff's Office is alerting the public of suspicious behavior near propane facilities after a recent incident in Somerset County. The Worcester County ...