Longtime foes U.S. and Iran now find themselves on same side of some critical conflicts . A nuclear deal would loosen sanctions on Iran , and allow it to devote more resources to propping up Hezbollah regime in Syria .
Longtime foes U.S. and Iran now find themselves on same side of some critical conflicts . A nuclear deal would loosen sanctions on Iran , and allow it to devote more resources to propping up Assad regime in Syria .