With wide grins and a historic handshake, President Donald Trump and North Korea’s Kim Jong Un met at the heavily fortified Demilitarized Zone on Sunday and agreed to revive talks on the pariah nation’s nuclear program. Trump, pressing his bid for a legacy-defining deal, became the first sitting American leader to step into North Korea. Significant doubts remain, though, about the future of the negotiations and the North’s willingness to give up its stockpile of nuclear weapons .
