CHICAGO (CBS) — If you know the name Trayvon Martin, you know of a campaign to stop the killing of young and innocent African Americans.

Trayvon Martin was shot dead by a neighborhood crime fighter in Florida, and the nation has erupted, as thousands of citizens have demanded the man be arrested and charged with murder.

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It is a moment, says Rev. Jesse Jackson, that’s turned into a movement – with entertainers, politicians and preachers demanding justice for one innocent African American teenager killed in Sanford, Fla.

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So what about the dozens of African American teenagers killed by their peers in Chicago? Shot dead in their neighborhoods, in their playgrounds, on their front porches. Moments that have not and are not being turned into movements.

The celebrities, the media, Rev. Al Sharpton and Rev. Jackson, they’re all in Florida. Isn’t it time for what they’re doing down there to be done up here?

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