Wrinkle emerges in Afghan security negotiations

Afghan President Hamid Karzai is urging tribal elders to approve a security agreement with the U.S. that could keep thousands of U.S. troops in Afghanistan until 2024. But in a controversial move, he want his successor sign the document after elections next April. Some question whether it's an attempt to avoid taking personal responsibility for an agreement that many Afghans see as selling out to foreign interests. President Barack Obama wants quick passage of the agreement.