The planned second North Korea-U.S. summit is going to be one more chance for North Korea to live up to its commitments to denuclearize.<br /> This is according to White House National Security Advisor John Bolton... who said in an interview with U.S.-based radio network NPR on Thursday.... that he thinks U.S. President Donald Trump is trying to give North Korea a chance to keep its promise made in Singapore.<br />He said.... he will not prejudge what the president may do, when asked whether that summit is going to be the LAST chance the North Koreans would get.<br />But Bolton noted the abruptly canceled high-level talks between Pyeongyang and Washington last month,.... saying that they do not yet have Kim Jong-un in the room.... and that the U.S. needs to see that happen.<br />He also stressed that North Korea needs to show actions in order for the U.S. to consider removing the economic sanctions. <br />