"What sets SEALs apart is our diversity in terms of the environments in which we operate," said Smith, also a SEAL for 24 years. "We operate at 10,000 feet in the Hindu Kush Mountains. We operate in desert regions in Iraq and elsewhere. We operate in jungles throughout the world."
As of 2009, there were 2,500 active duty SEALs. With the expanding war on terror and missions in 30 countries, the Navy needs more, but finding young men who can meet the SEALs' standards is a challenge.
"We are not looking for cocky kids," said Senior Chief Hans Garcia, a SEAL recruiter. "The perfect person would be a candidate who is remarkably physically fit, but is pretty humble, an analytical thinker, a problem solver -- someone who is very value-oriented, patriotic, puts service above self."
ABC News' BRIAN ROSS (@brianross) , JAKE TAPPER (@jaketapper) , RICHARD ESPOSITO, ALICE MAGGIN and NICK SCHIFRIN (@nickschifrin) contributed to this report.