Islamic State militants have threatened to behead Barack Obama and turn the U.S. into a Muslim province in the latest gruesome video to emerge from their self-styled caliphate. The footage shows a black-clad jihadist standing over a Kurdish soldier. Before the hostage is executed, the ISIS fighter warns the U.S. president: 'Know, oh Obama, that we will reach America. 'Know also that we will cut off your head in the White House and transform America into a Muslim province.' (Read More)
