Although there is no such thing as an invincible bullet-proof vest, the protective gear -- helmets lined with Kevlar and body vests that use Kevlar and 1-inch-thick ceramic plates -- has reduced ...

Cpl. Nicholas DeSantis-Austin, center, team leader with 3rd Battalion, 23rd Marine Regiment, poses with attendees from his Kevlar Helmet Return ceremony at Fort Benning, Georgia., June 9.