Extremist Syrian Islamist forces have seized control over much of Aleppo, the second-largest city in the war-torn country, raising significant new questions for the U.S. government about its policy in the highly volatile Syrian Arab Republic. "I think it is concerning if some elements of the anti-Assad forces get their hands on sensitive sites in Syria. There have been reports that they have seized the Syrian Scientific Studies and Research Center, which is where Assad’s chemical weapons program is housed among other military assets," Jason Brodsky, policy director for United Against Nuclear Iran, told Fox News Digital. He continued, "Given...