Stephen Halbrook is a research fellow and author with specific work on 2nd Amendment matters:
In sum, Eric Holder has taken a constricted view of Second Amendment rights. Millions of law-abiding Americans exercise the right to keep and bear arms. Mr. Holder’s opinion is that the people have no such right unless they are commanded to exercise it in a formal militia, which renders the right meaningless. He has advocated requiring that all firearm owners be registered with the government and that failure to comply be punished as a felony with substantial imprisonment. The restrictions he favors threaten civil liberties.
The nomination of Eric Holder to the office of Attorney General gives lie to the notion that the Obama administration will be a zealous defender of American’s 2nd Amendment rights. Halbrook offers insight and cited sources that support reasonable concern about Holder’s nomination.
(Update: Forgot to put the link in to the story. Fixed now.)