BOSTON -- Federal authorities are asking for painstaking precautions when witness protection program inspectors testify at the murder trial of former mob boss Francis P. “Cadillac Frank” Salemme: They want to clear the courtroom entirely of the public and the media. The U.S. Marshals Service says that while undercover inspectors are testifying in the trial of a man they once worked to hide, the public should sit in a different courtroom where audio, but [...]