Justin Trudeau

Witcover: Trump 'trusts' Kim, but will he verify?

Witcover: Trump 'trusts' Kim, but will he verify?

Behind the blockbuster of a possible diplomatic breakthrough on denuclearization of the Korean Peninsula, the same question that hovered over America's Cold War dealings with the former Soviet Union now confronts Donald Trump: Can we trust our adversary without verifying its promised positive behavior?

In that earlier confrontation between President Ronald Reagan and Russian leader Mikhail Gorbachev, the collapse of the latter's regime in a sense resolved the standoff. This time there is no indication that Kim Jong-un's primacy in North Korea is in any jeopardy. In fact it seems certain to be reinforced by his agreement with President Trump.

But Mr. Kim's track record for...