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Report: States with weaker gun laws have more gun violence. No brainer? Or politics as usual?

The math seems simple enough: weaker state gun laws equal more gun violence, so says a report released by the Center for American Progress.

This February 4, 2013 photo illustration in Manassas, Virginia, shows a Remington 20-gauge semi-automatic shotgun, a Colt AR-15 semi-automatic rifle, a Colt .45 semi-auto handgun, a Walther PK380 semi-auto handgun and various ammunition clips with a...
This February 4, 2013 photo illustration in Manassas, Virginia, shows a Remington 20-gauge semi-automatic shotgun, a Colt AR-15 semi-automatic rifle, a Colt …AFP/Getty Images

Trymaine Lee

Trymaine Lee is an NBC News correspondent.