9/11 Changed Marine's Life Forever

Master Sgt. Jason Velez remembers the events on September 11, 2001. He evacuated his building and helped first responders by barricading the streets and pushing civilians away from ground zero. He says the scenes he witnessed that day changed his life. Interviews by: Staff Sgt. Jennifer Brofer, Sgt. Heidi Agostini -- Photos courtesy of the U.S. Marine Corps and U.S. Navy