A history of the RealID law, and its implications:

Robert Gellman has a clear description of the law and its implications in the DM News here. In his most interesting quote, Gellman zeroes in on the public inconveneniences the law will require. (Bear in mind that requiring everyone to renew licenses in person and checking many more credentials will add enormous waiting times to drivers' license renewals.)

The factor that most often undermines the public’s desire for privacy is the public’s desire for convenience. People will give up their privacy for shorter lines, less hassle and faster transactions. The Real ID Act will result in exactly the opposite.