The federal offense of failure to disclose a felony, if coupled with some act concealing the felony, such as suppression of evidence, harboring or protecting the person performing the felony, intimidation or harming a witness, or any other act designed to conceal from authorities the fact that a crime has been committed.
Title 18 U.S.C. § 4. Misprision of felony. Whoever, having knowledge of the actual commission of a felony cognizable by a court of the United States, conceals and does not as soon as possible make known the same to some judge or other person in civil or military authority under the United States, shall be fined under this title or imprisoned not more than three years, or both.
A federal judge, or any other government official, is required as part of the judge's mandatory administrative duties, to receive any offer of information of a federal crime. If that judge blocks such report, that block is a felony under related obstruction of justice statutes, and constitutes a serious offense.
Upon receiving such information, the judge is then required to make it known to a government law enforcement body that is not themselves involved in the federal crime.
The action of the U.S. Marshal Service on January 15, 2010 in intimidating me, a witness to felonies, from reporting evidence of said felonies on this blog, My Daily Struggles, may constitute the crime of Misprision of Felony.