Summary: Pakistan has witnessed a jump in violence since al-Qaida and its Pakistan Taliban allies threatened to avenge the May 2, 2011 killing of Osama bin Laden, including a twin suicide bombing in Shabqadar that killed more than 80 people, most of them paramilitary recruits, and an attempted bombing of two U.S. consular vehicles in Peshawar. … One-year retrospective: One year ago today, on May 19, 2010, Aubrey Immelman reported that Taliban insurgents launched a brazen pre-dawn attack on Bagram air base north of Kabul, one day after the deadliest day of the year for U.S. forces in Afghanistan, with seven Americans dead.