Baltimore hits 100, tying record and ending four-year cool streak
The Baltimore Sun

TSA Demonstrates New Imaging Technology At Reagan National Airport

A volunteer stands inside a Backscatter scanner during a demonstration at the Transportation Security Administration's Systems Integration Facility at Ronald Reagan National Airport December 30, 2009 in Arlington, Virginia. Backscatter technology uses low level x-rays to create a two-sided image.CHIP SOMODEVILLA/GETTY IMAGES