Now even the Brits admit it: Handing a get-out-of-jail-free card to a terrorist who brought down Pan Am 103 over Lockerbie, Scotland, killing 270, was a mistake. It's about time. But why stop there? London should now do everything in its power to get Abdel Basset al-Megrahi back from Libya and behind bars, where he belongs. Washington should hold Britain's feet to the fire on that. And press Libya, too. "The new British government is clear that Megrahi's release was a mistake," a UK envoy said this week, echoing a statement by a spokesman for Prime Minister David Cameron. Megrahi...