I made the extra effort to find the original source material, because I felt the corporate newsletter was likely a very incomplete summary. I went to Google and typed: TSA random screening gates. Now I'm exhausted after doing all that work nobody else could do.

Here: http://www.tsa.gov/press/releases/20..._03132007.shtm

It's a surge at 5 airports, not nationwide. The newsletter failed to mention that little tidbit.