Some commercial pilots in the United States are indeed authorized to carry firearms in the cockpit as part of the Federal Flight Deck Officer (FFDO) program. Established by the Transportation Security Administration (TSA) following the September 11, 2001, terrorist attacks, this voluntary program deputizes qualified pilots and flight crew members as federal law enforcement officers. To participate, pilots must undergo rigorous psychological screening, a background check, and a five-day intensive training course at the Federal Law Enforcement Training Center in New Mexico. Once deputized, these officers are authorized to use force, including deadly force, specifically to defend the flight deck against acts of criminal violence or air piracy. However, their jurisdiction is strictly limited to the flight deck; they must keep their firearms stowed and locked in a secure case while outside of that specific area. While the program is discreet and the exact number of armed pilots is not public information, it serves as a critical, final layer of security intended to prevent unauthorized entry into the cockpit during a flight.