First, take a deep breath. Now take a look at the Wall Street Journal. The otherwise fine newspaper editorially on Saturday blasted President Trump. For what? For not killing Iranians and blowing up Iranian targets to show how super our American power is. The president acted humanely and rationally, weighing proportionality in response to Iran’s downing of our spy drone over international waters (we say) or Iranian waters (they say). The WSJ, of course, is an authority on the subject of territoriality and sovereignty and the respect thereof. The newspaper for years insisted that the United States should have no...