Bob Greene : Navy SEALs go through training in San Diego . The U.S. military is preparing to send a small number of elite commandos into the rugged mountains and jungles of southern Afghanistan for an operation that could be one of its most dangerous yet. He says SEALs show a devotion to duty that few of us can ever attain .
Bob Greene : Navy SEALs go through training in San Diego . Navy says they go through what may be toughest military training in the world . He says SEALs show a devotion to duty that few of us can ever attain .