As has been blogged about quite a bit since it happened, SCOTUS has ruled in a 5-4 decision that people are required to give their names if asked by a police officer. (With the caveat that there must be a law on the books that requires you to do so, which isn’t necessarily true in every state.)
I find it interesting that the Court ruled that you had no Constitutional right to withhold your name, but didn’t necessarily rule on producing your identification papers. It provokes the idea you could simply give a false name, but, if arrested, differing from one’s physical ID would probably lead to being charged with giving a false statement.
Courtesy of The Newshour with Jim Lehrer