On April 22, 2004 in Karabilah, Iraq, Cpl. Jason Dunham snuffed out a grenade with his helmet and body and, in dying, saved the lives of other Marines. He’s gone now and, like other Marines before him, will never hear the praise for his heroics, wear his Medal of Honor at ceremonies or stand in formation again. But after Saturday, Nov. 13, when the 9,200-ton, 509-foot warship USS Jason Dunham is commissioned in Fort Lauderdale, Fla., the world will see a guided missile destroyer sail by, proudly bearing his name and cutting through the high seas with a crew of…