The US suffered a tremendous loss Saturday in Afganistan when the downing of a Chinook helicopter took the lives of 31 special forces troops. As Danger Room reports, it may have been an entirely new Taliban weapon that did it:
Sgt. 1st Class Leroy Arthur Petry is one of only two living recipients of the Medal of Honor since the Vietnam War. And how he earned it is a story that you need to hear.