US President Donald Trump once more signalled his optimism on Thursday about efforts to end the nuclear standoff with North Korea, as he took the extraordinary diplomatic step of tweeting out a letter from Kim Jong Un.
The four-paragraph letter -- an upbeat missive in which Kim voices hope in a "new future" and speaks of his "invariable trust" in Trump -- is dated July 6, the day Secretary of State Mike Pompeo landed in North Korea for what turned out to be acrimonious talks with Kim's regime.