Vanity Fair says no:

As you stand in endless lines this holiday season, here’s a comforting thought: all those security measures accomplish nothing, at enormous cost. That’s the conclusion of Charles C. Mann, who put the T.S.A. to the test with the help of one of America’s top security experts.

Experts like Bruce Schneier have been calling what the TSA does “security theater” for 10 years now. The mainstream press just now seem to be catching on.