On increased alert, SENIOR AIRMAN Kevin Gallagher, USAF, 100th Security Forces Squadron, RAF Mildenhall, UK, with a Colt 5.56 mm M16A2 at the ready, employs proper security procedures for personnel leaving the base. The base is now operating in a Force Protection Condition in response to terrorist attacks on the World Trade Centers Twin Towers and at the Pentagon. When hijackers deliberately flew civilian airliners into the buildings, killing themselves, the passengers and thousands on the ground, on the morning of 11 September 2001