Members of the 86th Transportation Group use a Hyster forklift to put up barriers around the 86th Airlift Wing Headquarters Building in response to Condition Threatcon Delta on Ramstein Air Base, Germany. The base is now operating in a heighten state of alertness in response to terrorist attacks on the World Trade Centers Twin Towers in New York and at the Pentagon, when hijackers deliberately flew civilian airliners into the buildings, on the morning of 11 September 2001