SEAL Team 6 prefers to operate in the dark, but it stepped into the limelight in May after its daring nighttime raid in Pakistan killed Osama bin Laden. Officially known as the Naval Special Warfare Development Group, SEAL Team 6 is charged with carrying out the nation's toughest counterterrorism missions. Its members, plucked from regular SEAL units, generally have wide experience in weapons, parachuting and diving, which makes the typical SEAL Team 6 member — in his 30s — older than most in the U.S. military.