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Evanston police officer documents some information on a firearm that was turned in as part of an amnesty-based gun buyback program in Evanston, Illinois

An Evanston police officer documents some information on a firearm that was turned in as part of an amnesty-based gun buyback program in Evanston, Illinois December 15, 2012. Residents were given $100 for each operational firearm given in, and no criminal charges would be laid. REUTERS/Jim Young (UNITED STATES - Tags: CRIME LAW)

Gun buyback program collects thousands of weapons