President Trump boasts about his “zigzag” foreign policy as if inconsistency is an attribute in dealing with a fragile world, but his zigzagging endangers backchannel intermediaries handling outreach to North Korea, reports Robert Parry.

President Trump’s bellicose speech to the United Nations General Assembly last month sparked a crisis for the behind-the-scenes diplomacy that was then reaching out to North Korea and Iran, with Trump’s comments jeopardizing not only the talks but the credibility of the intermediaries, according to a source familiar with those efforts.