Assessing U.S. sanctions on Russia : next steps : hearing before the Committee on Banking, Housing, and Urban Affairs, United States Senate, one Hundred Fifteenth Congress, first session, on examining the existing Russian sanctions architecture in terms of its effectiveness and economic impact and assessing what corrective action, if any, the United States should take in light of recent developments involving Russia's actions in Ukraine, Syria and with cyber attacks targeted in the United States, March 15, 2017.