In a case that demonstrates why the Department of Justice doesn't understand when its knee jerk use of the privacy exemptions are improper, the FBI has been ordered to release certain information pertaining to the FBI's investigation of actor George Hamilton done at the behast of then President Lyndon Baines Johnson. LBJ's daughter was dating the actor at the time (1966) and the FBI insisted it was withholding the material to protect the actor's privacy. The Court's lengthy opinion, however, shows how the public interest in a ill intentioned government investigation outweighs the small amount of privacy Hamilton may have in the records. It's a very interesting opinion - and that says a lot for a FOIA opinion. Another interesting tidbit is that the case was prosecuted by law students at Villanova.
Update: The Philadelphia Inquirer has a story on this matter, which includes a quote from the requester. The only thing I have to add is that it is very unlikely that the President or anyone appointed by the President had anything to do with the decision to withhold Hamilton's name, these decisions are usually made by the FOIA offices involved and prosecuted by the U.S. Attorneys Office involved.