US aviation security: Do something, no matter what

You could almost see the ineffectual knee jerking coming out of Washington in the wake of the latest terrorist bombing attempt. The answer was clear to the US Department of Homeland Security's Transportation Security Administration: So something, no matter what. Limit carry-on baggage to one item. Confine passengers to their seats with nothing on their laps for the last hour of flight. No access to carry ons on the last hour.