Understanding the role of sanctions under the Iran deal : hearing before the Committee on Banking, Housing, and Urban Affairs, United States Senate, One Hundred Fourteenth Congress, second session on examining the nature of the sanctions relief that is being provided to Iran, including the recent focus on the potential for giving Iran additional access to the U.S. financial market in return for its previously negotiated temporary nuclear-related commitments set forth in the "Joint Comprehensive Plan of Action, " May 24, 2016