routine today didn t exist at the time. the government responded with the department of homeland security, which is struggling to keep up with new threats here is pete williams. reporter: on board a delta airlines flight from los angeles to atlanta, an urgent plea from the pilot. we d like all strong males to the front of the aircraft to handle a problem passenger. an atlanta businessman was quick to respond. i immediately jumped, grabbed his shoulders, pulled his hood over his head and pulled him to the ground. reporter: since 9/11, people take more responsibility for their own security, a spirit born aboard united flight 93, hijacked on 9/11 and diverted with a terrorist at the controls i would like to tell you all to remain seated we have a bomb aboard. and we are going back to the airport, and we have our demands so remain quiet. reporter: passengers stormed the cockpit led by todd beamer s cry let s roll.