It's time to pour out the multiculti Kool-Aid. That was the message from British Prime Minister David Cameron as he attacked "state multiculturalism" for letting Islamic radicals prosper virtually unchecked in the West. Instead of celebrating Western freedoms, the Brits have played blind while extremists recruit followers in universities, mosques and online chat rooms. No more namby-pamby. "Frankly," he told a security conference Saturday, "we need a lot less of the passive tolerance of recent years and a much more active, muscular liberalism." That requires actively promoting values like freedom of speech and equal rights for all -- and expecting...