<Li> In 2011, American rapper Yelawolf released a song called "Let's Roll", which talks about Southern patriotism . </Li> <Ul> <Li> The phrase became especially known and popular after being used by President George W. Bush in a speech to AmeriCorps volunteers and during his 2002 State of the Union address . Even though the phrase was in common use long before September 11, many soon tried to lay claim to it as a trademark . The Todd M. Beamer Foundation was eventually granted a trademark for uses of the phrase relating to "pre-recorded compact discs, audio tapes, digital audio tapes, and phonograph records featuring music ." </Li> <Li> In early 2002, United States Air Force Chief of Staff Gen. John P. Jumper ordered that one airplane in each USAF squadron and all USAF demonstration planes would bear an image of an eagle on an American flag with the words "Let's Roll" and "Spirit of 9 - 11", to remain until the first anniversary of the attack . It was also used by Lisa Beamer, widow of Todd, in a 2003 book titled Let's Roll: Ordinary People, Extraordinary Courage . </Li> </Ul> <Li> The phrase became especially known and popular after being used by President George W. Bush in a speech to AmeriCorps volunteers and during his 2002 State of the Union address . Even though the phrase was in common use long before September 11, many soon tried to lay claim to it as a trademark . The Todd M. Beamer Foundation was eventually granted a trademark for uses of the phrase relating to "pre-recorded compact discs, audio tapes, digital audio tapes, and phonograph records featuring music ." </Li> <Li> In early 2002, United States Air Force Chief of Staff Gen. John P. Jumper ordered that one airplane in each USAF squadron and all USAF demonstration planes would bear an image of an eagle on an American flag with the words "Let's Roll" and "Spirit of 9 - 11", to remain until the first anniversary of the attack . It was also used by Lisa Beamer, widow of Todd, in a 2003 book titled Let's Roll: Ordinary People, Extraordinary Courage . </Li>

What does let roll have to do with 9 11