Iran can discuss other issues with the United States providing its 2015 nuclear deal with six powers is fully implemented, Iranian President Hassan Rouhani said on Thursday, adding that Tehrans missile capabilities were not negotiable. Rouhani also said Irans steps to scale back its nuclear commitment were reversible if the European parties to the pact carried out their promises to salvage the deal, which the United States exited last year, then reimposed sanctions on Tehran to force it to renegotiate a broader pact. Rouhani, speaking at a news conference in New York, touched on the subject of swaps of US and Iranian prisoners, saying Iran had in the past held talks with Washington over the issue, "and Tehran released one prisoner, but (the) US failed to reciprocate." He also said a US visa ban on Iranian officials and their families had no impact as "Iranian officials have no desire to travel to America.”