The nuclear chief renewed a warning that Iran could swiftly revive aspects of its nuclear program curbed by the nuclear deal, if the US administration stuck with its harsh policy to compel Tehran into renegotiating the pact. "I hope that the American side will come to its senses. While we are interested in seeing the JCPOA hold … all preparations are in place for reverting to the nuclear past" if necessary, the head of the Atomic Energy Organization of Iran, Ali Akbar Salehi, said in a talk with the state broadcaster, ISNA reported on Sunday. JCPOA stands for the Joint Comprehensive Plan of Action, the formal title of the two-year-old agreement negotiated between Iran and the six major powers in 2015 to swap temporary restrictions on Tehran's nuclear work for the removal of international sanctions. Salehi was reacting to US President Donald Trump's announcement on Friday that his administration has assessed that Iran has allegedly failed to comply with the deal. Trump offered no evidence to back up his claims and remains blind to the repeated confirmation of the civilian nature of Iran's nuclear program by the International Atomic Energy Agency. The hawkish US president also rolled out a plan purportedly to counter the Islamic Republic's regional clout.