I agree fully re: expiration dates. IIRC the patriot act had an expiration date and it took nearly two decades for it to actually expire because it kept being reauthorized. It finally did expire last year and was not reauthorized and I suspect that is because we've actually already slipped far enough down the slope to no longer need that particular set of rules.

So I support the expiration date idea. I just wish there was a way to implement it such that it actually had the desired effect.