I believe it is intrusive to prohibit driving under the influence of alcohol. Because the issue isn't whether a driver is drunk, but whether he or she is dangerous. So I propose administering the driving exam under progressively higher blood alcohol levels, and issuing a license at the highest level of inebriation at which the driver can pass the test. I also think it's nobody's business what performance enhancing drugs an athlete uses. Professional sports is show business, after all, and you don't see them taking back the Grateful Dead's gold records because they were achieved while using banned substances.