President Barack Obama said in a CBS television interview broadcast on Sunday, U.S. Intelligence agencies Underestimated Islamic State activity inside Syria, which has become "ground zero" for jihadists worldwide. Conversely, Obama said in a "60 Minutes" interview taped on Friday, the United States overestimated the ability of the Iraqi army to fight the militant groups. Citing earlier comments by James Clapper, director of national intelligence, Obama ack**wledged that U.S.