New rules imposed by the U.S. Transportation Security Administration also limit on-board activities by customers and crew in U.S. airspace that may adversely impact on-board service. Among other things, during the final hour of flight customers must remain seated, will not be allowed to access carry-on baggage, or have personal belongings or other items on their laps.

LATER, here’s the NYTimes’s story on the new restrictions. James Joyner makes sense when he calls this mind-numbingly stupid:

We’re simply going to make people miserable for no apparent reason. There have been precisely three attempts over the last eight years to commit acts of terrorism aboard commercial aircraft. All of them clownishly inept and easily thwarted by the passengers. How many tens of thousands of flights have been incident free? And, yet, we’re going to make hundreds of thousands of people endure transcontinental flights without reading materials or the ability to use the restroom?

Joyner points to Radley Balko:

In addition to keeping with its usually tradition of making policy on a reactionary basis, this one wouldn’t even have done anything to prevent the attempt over the weekend. The guy was in his seat when he tried to light the explosive device. And the passenger who confronted him got out of his seat to do it.

Also, if the goal was to bring the plane down from the air, why add restrictions for the last hour of the flight?

Seems to me that what this, Flight 93, and the Richard Reid incident have shown us is that the best line of defense against airplane-based terrorism is us. Alert, aware, informed passengers.