Defense Department DNA registry
Diane Giampetroni, a technician at the Defense Department's DNA Registry in Gaithersburg, Md., processes the 5 millionth DNA sample from a U.S. servicemember to be entered into the inventory, Jan. 23. Ms. Giampetroni has processed more than 520,000 specimens since joining the DNA Registry staff in 1995. (Department of Defense photo/Donna Miles)