When does the unthinkable become thinkable?  When tantrum-throwing children have in their possession the most destructive force on Earth. North Korea and the U.S. exchanged bombastic threats on Tuesday, making it ever harder for the two sides to climb down from the ledge and find a peaceful way forward. For the uninitiated, we're talking about nuclear war.  The threat is real.  The possibility is real.  Both President Trump and Kim Jong-un are painting themselves into a corner, where it is becoming less likely that one or the other can extricate himself without unleashing devastation upon the world. In truth, it is Kim who must yield.  The U.S. cannot allow a paranoid, unstable regime to possess a weapon that can devastate American cities.  Some American intelligence officials believe that the North has already been able to marry a nuclear warhead to one of its ICBMs.  But there is no evidence that the warhead has been tested yet,...(Read Full Post)