Article updated: 1/8/2013 5:51 PM

Giffords, Kelly launch gun control lobbying effort

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Former U.S. Rep. Gabrielle Giffords, center, and her husband, Mark Kelly, launched a political action committee aimed at curbing gun violence on Tuesday, the second anniversary of the Tucson shooting that killed six people and left her critically injured.

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Tuesday was not just a day for Tucson to remember the victims of the deadly shooting that severely injured then-Rep. Gabrielle Giffords. It was also a day when residents could see firsthand the nation's gun debate play out in a busy parking lot outside a city police station.