This is the same incremental undercutting of the 2nd Amendment we have gone through since 1934. As an Endowment member of the NRA, I am vehemently opposed to this, and have written many letters of opposition.
The NRA backing this, is not looking at the unintended consequences or the 2-doctor ruling. It only takes a small group in each state to 'adjucate' any individual who is even on a presciption of Tylenol the purchase of a firearm.
Don't think it won't happen.
http://www.freerepublic.com/focus/f-news/1908448/posts?page=27#27
College Admins: If You Favor Second Amendment Rights, You Must Be Crazy