MSNBC America Remembers 20 Years Later September 11, 2021 09:36:00
>> reporter: since 9/11, people take more responsibility for their security. flight 93 was diverted with a terrorist at the controls. passengers stormed the cockpit led by todd beamer's cry, "let's rom." the plane crashed in pennsylvania 20 minutes flying time from washington, the intended target. >> i think it made everybody aware that defense of the country is not just for those in uniform, everybody has to play a role in securing our nation. >> reporter: the nation responded by defending against organized terrorist attacks, with screening common place at airports and public events that draw...