Delegates to the Afghan loya jirga put off consideration of a draft constitution after those opposed to interim leader Hamid Karzai boycotted efforts to vote on key provisions of the charter for the war-torn nation's first post-Taliban government.

Two years after the United States ousted the Taliban from power in Afghanistan, remnants of that regime are threatening to disrupt the current constitutional conference there. Margaret Warner discusses the security situation in Afghanistan with New York Times correspondent Carlotta…