The RINO hunt is back on, and the coveted trophy is Scott Brown.Inevitably and predictably, the new senator from Massachusetts -- Mr. 41, Mr. I-Drive-A-Truck, tea party poster dude -- has disappointed his base by, alas, representing his constituents. It's the purity test all over again; only this time, the stakes are high and the weird are turning seriously pro. Not that the tea partiers are weird, not most of them, anyway. But some are at risk of flying off into the blood-red zone of wing-nuttery. One of the sessions at the recent Conservative Political Action Conference (CPAC) questioned whether...