Second skin: what to wear to war Boom box: automotive safety for people who drive on bomb Fighting by ear: the conundrum of military noise Below the belt: the cruelest shot of all It might get weird: a salute to genital transplants Carnage under fire: how do combat medics cope? Sweating bullets: the war on heat Leaky SEALs: diarrhea as a threat to national security The maggot paradox: flies on the battlefield, for better and worse What doesn't kill you will make you reek: a brief history of stink bombs Old chum: how to make and test shark repellent That sinking feeling: when things go wrong under the sea Up and under: a submarine tries to sleep Feedback from the fallen: how the dead help the living stay that way