WASHINGTON HAD BETTER LEVEL ON THE PAKI-NUKE-PROLIFERATION HORROR. The always unfettered French journalist, Bernard-Henri Levy, knows a great deal of the ugly and scary detail and he lays it out in this piece from today's Wall Street Journal. Surely, what he knows has long been known to our own intelligence people. The time has come for the administration to talk straight about the horrific danger into which Pakistan has plunged the world.