No Clues Yet On How San Bernardino Shooters Became Radicalized

U.S. authorities are looking for clues to determine how the suspected shooters in the San Bernardino, California terrorist attack last week became radicalized. So far, the search through Tashfeen Malik and Syed Farook's personal items, cell phones and computers has revealed no direct links between the couple and major terrorist groups. Zlatica Hoke has more.