Major Afghanistan city slips back under Taliban control

Southern Afghanistan's largest city, Kandahar, is slipping back under Taliban control as overstretched U.S. troops focus on clearing insurgents from the countryside–a potentially alarming setback for President Barack Obama's war strategy. Afghan authorities promise a counteroffensive against the militants in Kandahar–a pledge that appears aimed primarily at boosting public morale after a devastating bombing killed 43 people on Tuesday. Losing Kandahar, a city of nearly 1 million and the Taliban's former headquarters, would be a huge symbolic blow because it is effectively the capital of the ethnic Pashtun-dominated south, the main battlefield of the Afghan war.