Retired Army colonel, 70, sent to Afghanistan:

“Today, Caulfield, a colonel from Satellite Beach, Fla., is an example of how the continuing demands of keeping ground troops in Afghanistan and Iraq are forcing the military to go to extraordinary measures to keep its ranks filled.”

Here’s a fascinating article on traffic flow design and how removing traffic signs can actually make roads safer. Okay, I know you are thinking, “fascinating? traffic flow?” — but trust me. It’s interesting!