national museum of american history: Pentagon object table
national museum of american history: World Trade Center object table
national museum of american history: Shanksville, PA object table
national museum of american history: Transportation Security Administration object table
national museum of american history: FDNY Rescue 1 truck door
national museum of american history: Pentagon helipad clock
national museum of american history: Fuselage fragment (flag)
national museum of american history: Vertical speed indicator (VSI)
national museum of american history: Comment from Virginia man, September 2, 2011