Policies intended to bring about the termination of the Iranian and (North Korean) nuclear weapons programs, which result in reducing the council's role under the (U.N.) Charter, would truly be unfortunate and ironic.
If the Security Council can't deal with something like the Iranian nuclear weapons program, then it's hard to imagine what circumstances the (UN) Charter contemplated the Council would be involved in.
The United States believes that the long-standing, massive and covert Iranian effort to acquire sensitive nuclear capabilities makes sense only as part of a nuclear weapons program,