Description:Small pocketknives and an array of sporting equipment — banned from aircraft cabins in the wake of the September 11, 2001, terrorist attacks — will once again be allowed in U.S. planes, the head of the Transportation Security Administration said Tuesday.
Knives with blades that are 2.36 inches (6 centimeters) or shorter and less than a 1/2 inch wide will be permitted on U.S. airline flights as long as the blade is not fixed or does not lock into place.(0:58)