Since the report about top national security figures in the Trump administration sharing war plans with a journalist in a group text chat, the reaction has properly focused on the astonishing security breach. But beyond the intelligence lapse that led the Trump aides to provide the Atlantic's Jeffrey Goldberg with the targets, weapons and timing of forthcoming military strikes in Yemen, the contents of the Signal chat make it plain for the world to see what our allies feared and our foes hoped: The United States is being run by a bunch of clownish amateurs.