One of Ours

...Mark Kleiman, musing about the problem of drunk driving, suggests that instead of revoking a person's driving license, why not revoke their drinking license instead?..

...when a driver's license starts becoming overtly more than just a driver's license, where does it end? Once people get the idea that it can be used to regulate more than just driving, why not use the same card to regulate and track sex offenders? Or resident aliens? Or handgun licensing? Or criminal records? It would be mighty handy to have all that stuff in one place, wouldn't it? Would this happen? Who knows?

Does it count as "concrete" harm? I guess it depends on your outlook. I'm not normally much of a fan of slippery slope arguments, but I suspect that if Mark's idea were ever implemented, drinking wouldn't be the last thing that ended up getting regulated by your driver's license. Ditto for a national ID card...