Expert says Islamic State has badly damaged major Palmyra monument

By Firas MaqdisiPALMYRA, Syria (Reuters) - Islamic State militants have severely damaged a major Roman monument in the ancient Syrian city of Palmyra, an antiquities official said after visiting the site on Saturday.Under heavy Russian air cover, the Syrian army and allied militias drove the jihadist group out of the UNESCO world heritage site on Thursday, two months after it had seized it in a surprise advance.It was the second time the city had been recaptured from the militants in the course