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Input: GENEVA (Reuters) - U.S. President Donald Trump risks driving Iran towards nuclear proliferation and worsening a standoff with North Korea if Washington ends a nuclear deal with Tehran  former U.S. Secretary of State John Kerry said late on Thursday.
“If you want to negotiate with (North Korean leader) Kim Jong Un  and your goal is to avoid war and try to be able to have a diplomatic resolution  the worst thing you can do is first threaten to destroy his country in the United Nations ”  Kerry  said.
 He  was speaking in a private lecture delivered at Geneva’s Graduate Institute.
“And secondly  screw around with the deal that has already been made because the message is  don’t make a deal with the United States  they won’t keep their word ”  he  said.
The nuclear deal places Iran under tough restraints  including inspections  round-the-clock surveillance and tracking every ounce of uranium produced   Kerry  said. “We would notice an uptick in their enrichment  like that ”  he  said  snapping  his  fingers.

Ending Iran nuclear deal would worsen North Korea situation: Kerry