Summary: A gunman identified as Jared Lee Loughner, 22, opened fire as Rep. Gabrielle Giffords (D-Ariz.) met with constituents outside a grocery store in Tucson, killing Arizona’s chief federal judge John M. Roll and five others, and leaving the lawmaker fighting for her life in an attempted assassination that had Americans questioning whether divisive politics had driven the attack. … One-year retrospective: One year ago today, on January 9, 2010, Aubrey Immelman reported that the Yemeni government, while ramping up the fight against al-Qaida with U.S. help, has also escalated its own internal conflicts with Shi’ite rebels in the north and Sunni secessionists in the south, threatening to throw the fractured country into greater chaos and nourish the growth of al-Qaida.