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Deputy Asst. Secretary of State for Iran & Iraq Brett McGurk says he spoke to Iraqi PM to clarify his comments regarding a threat against the U.S.
The U.S. struck an al Qaeda offshoot called Khorasan in Syria, but some fear the group will still attack U.S. interests.
Saudi Arabia, an key U.S. ally against ISIS, frequently beheads people for non-lethal crimes. CNN's Brian Todd reports.
Drew Griffin exclusively visits a meeting in Syria where moderate groups are coming together in the fight against ISIS.