U.S. President Donald Trump and North Korea's Kim Jong Un. The two leaders plan to meet in May.
(CHIP SOMODEVILLA/STR/AFP/Getty Images)
The easy part is agreeing to a summit. The hard part is solving the problem. But that doesn't mean we should be entirely cynical.
Some say insanity is doing the same thing over and over again and hoping for a different result. That could apply equally to talking with North Korea and to trying to isolate it into submission. But circumstances change, and sometimes the same action in a different context has different results....