I couldn't agree more. The DOJ has for too long been used as a weapon of the executive branch to selectively enforce certain laws and ignore others, the CSA included. I have to disagree on Eric Holder though, I've written to him before and his responses are troubling to a social libertarian such as myself. He's a big opponent of legalizing online poker for example because of it's "evils" and would not vote for legislation that allows states to decide whether to tax and regulate it. While republicans claim to be the party of small government and states rights, that doesn't seem to apply to sexual orientation / drugs / gambling aka anything that goes against their Puritan values.
edit: a well written article on the legality of state marijuana laws and their interaction with federal law:
http://www.cato.org/sites/cato.org/f.../pdf/PA714.pdf A decent response to the article,
http://law.marquette.edu/facultyblog...arijuana-laws/ which makes the argument that states merely choosing not to enforce federal laws is not equivalent to attempting to violate federal laws, but that of course under federal law marijuana possession and use remains illegal.