Before last week's South Carolina Republican debate, Ron Paul supporters complained that their candidate was not getting the first-tier attention his polling and fundraising should bring. It is true that Paul has often been overlooked and dismissed, as one might treat a slightly dotty uncle. But perhaps some first-tier scrutiny is deserved. Paul was the only candidate at the debate to make news, calling for the repeal of laws against prostitution, cocaine and heroin. The freedom to use drugs, he argued, is equivalent to the freedom of people to “practice their religion and say their prayers.” Liberty must be defended...