A family of Assyrian Christians has been guarding the tomb of Nahum the Elkoshi for generations. That tradition may be ending soon.Al Qosh, IRAQ – Nahum the Prophet warned the world about the impending end of the Assyrian empire and the destruction of its capital, Nineveh. More than 2,600 years later, his tomb, inside an ancient synagogue in the Iraqi city of Al Qosh, may face the same fate, courtesy of ISIS. Smooth domes topped with crucifixes rise slightly above the beige stone houses in Al Qosh, the modern town built on the ancient Nineveh plain. The town is a...