Never-Ending POW/MIA Search

More than 78,000 American troops are still officially listed as missing in action from World War II. Another 8,100 are MIA from Korean War, and 1,750 from Vietnam. The Associated press reports today that the Joint POW/MIA Accounting Command at Hickam Air Force Base, Hawaii, is painstakingly tracking down the remains of as many of these service members as they can -- even if that means hacking through thick foliage on Iwo Jima with machetes in search of long-abandoned caves.