Coming from Robert Gates—the epitome of the soft-spoken, buttoned-down public servant—the rebuke was particularly striking. Military officers, Gates said last week, should give their advice to America's civilian leadership "candidly but privately," an allusion to Gen. Stanley McChrystal's remarks in London about the need for counterinsurgency, not counterterror, in Afghanistan. Less noted was the fact that Gates included civilians in his admonition, a broader criticism of all leaks. But the general's comments, which came in a question-and-answer session after a speech to the International Institute for Strategic Studies, are the ones that have roiled Washington and the foreign-policy establishment, producing a head-snapping conversation in which conservatives are cheering the suggestion of dissent within the ranks and liberals are going on about how military officers should shut up and salute. Consistency, though, has never been an especially widespread partisan virtue.