North Korea and US vow to keep talking
North Korea on Friday promised further negotiations with the United States (US) despite a spectacular failure to strike a nuclear deal at their Hanoi summit, with both sides keeping the door of diplomacy open.The high-stakes second meeting between the North's leader Kim Jong-un and US President Donald Trump broke up in disarray Thursday, without even a joint statement.In the aftermath, each sought to blame the other's intransigence for the deadlock.Trump insisted Pyongyang wanted al