TEHRAN, Iran — Iranian authorities on Thursday arrested four staff members of state TV, accusing them of insulting the first caliph of Sunni Muslims and close ally of the Prophet Muhammad, state TV ...

Two weeks ago Glenn Beck introduced much of the world to the word caliphate. Shortly after the Egypt uprisings began, Beck used two chalkboards to 'explain' what was happening there and went on to ...

RIYADH (Reuters) - The creation of an Islamic caliphate, or empire, has long formed part of al Qaeda's world view, and it is a vision that seems to have unsettled Washington. Sign up here. But experts ...