Though the SST was based in Tripoli, its mission was to support U.S. diplomats throughout Libya.
The SST at the time was led by Andy Wood, a former Green Beret and another witness at the committee hearing.
On two occasions, members of the SST traveled to Benghazi to "bolster security at that location," said Wood in his testimony.
A commercial aircraft that flies faster than the speed of sound; SST stands for supersonic transport. The Concorde, developed by the British and French, is an example of an SST.