9/23: Al-Shabab terrorist group fighting to extend its reach; Bill Clinton talks about wife's presidential ambitions
Al-Shabab terrorist group says the deadly attack on a Kenyan mall is in retaliation for Kenyan troops participating in the fight against al-Shabab in Somalia, but it's also a propaganda tool; and, Charlie Rose and Norah O'Donnell of "CBS This Morning" talked to Bill Clinton about his wife's presidential ambitions.