Today was supposed to be a fun one for liberals on the Investigations subcommittee for the U.S. Senate Homeland Security and Government Affairs Committee. They were going to haul in Apple’s CEO, CFO, and head of Tax Operations to browbeat them over their lack of — what, patriotism? Dumbness? — for having avoided tax liability last year. This was supposed to provide a little diversion from a week of wall-to-wall Obama administration scandals. Instead, Sen. Rand Paul rained on everyone’s parade, providing an exemplary rebuttal of the brain-dead populism that politicians so often engage in when it comes to corporate...