Sigal Mandelker is praised by Mnuchin for helping department play 'an increasingly central role in national security matters'

Washington separately offers $15 million reward for information that could disrupt financial mechanisms of the Revolutionary Guards, including the Quds Force

Treasury Department says ultimate beneficiary from sale of crude aboard Adrian Darya 1 is Iran's Quds Force, which will use proceeds to 'propagate terrorism'

Treasury sanctions two networks it says procured parts for Tehran's military organizations and facilitated proliferation activities

25 years after Jewish center bombing, Treasury Department says Salman Raouf Salman remains a threat; State Dept. offers $7 million reward for information on his location

Treasury official says no distinction between Lebanese terror group's political, military wings; senior official close to chief Hassan Nasrallah also placed on terror list