The Associated Press reports:

  Monica Goodling, a senior Justice Department official involved in the firings of federal prosecutors, will refuse to answer questions at upcoming Senate hearings, citing Fifth Amendment protection against self-incrimination, her lawyer said Monday.
  "The potential for legal jeopardy for Ms. Goodling from even her most truthful and accurate testimony under these circumstances is very real," said the lawyer, John Dowd.
  "One need look no further than the recent circumstances and proceedings involving Lewis Libby," he said, a reference to the recent conviction of Vice President Dick Cheney's former chief of staff in the CIA leak case.

  I'm not sure I follow the rationale here. The Fifth Amendment privilege is available if the witness has reasonable ground to believe that her testimony will be used against her to prove an element of a crime. Brown v. Walker, 161 U.S. 591, 598 (1896). What crime might Goodling have committed? I'm also puzzled by the comparison to the Libby case. Libby was prosecuted and convicted because he lied under oath, not because he admitted to criminal activity. Is Goodling taking the Fifth because if she testifies under oath she would lie and face perjury charges rather than tell the truth? If so, that's not a valid basis for the privilege. See, e.g,, United States v. Seewald, 450 F.2d 1159 (2d Cir. 1971). Or perhaps she is taking the Fifth because she lied before, and her testifying truthfully this time will reveal her earlier lies?

  UPDATE: According to the first page of the letter Goodling's counsel sent to the Senate, the rationale for taking the Fifth seems to be that Congress isn't being very open-minded and Democrats don't trust the Bush Administration. That's a new one; I don't think I've ever come across that one before. (Maybe there is more on the other pages of the letter not yet available?)

  ANOTHER UPDATE: A few courts have discussed the theoretical possibility that there is some kind of "perjury trap" defense that might apply when a witness is hauled before a tribunal just to see if the witness can be tricked into comitting perjury. Courts have hinted that setting such a perjury trap might violate the Due Process clause. However, I don't think any court has ever actually found a perjury trap; courts invariably find a government interest that allows the testimony, and generally do not need to reach whether such a defense exists. See, e.g., Wheel v. Robinson, 34 F.3d 60, 67-68 (2d Cir. 1994). Perhaps that's what Goodling's lawyer has in mind?

  YET ANOTHER UPDATE: The link to the letter now includes the entire letter, which in turn relies heavily on Ohio v Reiner. I don't see how Reiner is helpful. That case just says that a person can both claim that they are innocent of any offense and yet also claim the Fifth Amendment privilege. Well of course; a person can say whataver they want about their culpability without changing whether they have a privilege. But the Fifth Amendment issue is whether a person has substantial reason to fear that their truthful testimony will help lead to them being prosecuted. Goodling's letter doesn't give a legally valid reason for that fear, at least as far as I can tell.

  On the other hand, this may just be a way of slowing Congress down. I gather that Congress's main option would be to seek contempt sanctions:

Section 192 of Title 2 of the United States Code provides that a subpoenaed witness who refuses "to produce papers upon any matter under inquiry before either House ... or any committee of either House of Congress", shall be guilty of a misdemeanor "punishable by a fine of not more than $1,000 nor less than $100 and imprisonment in a common jail for not less than one month nor more than twelve months." Once an individual has been found in contempt by either House of Congress, a contempt order is presented to the President of the Senate or the Speaker of the House of Representatives for certification. 2 U.S.C. § 194. The President or Speaker in turn delivers the contempt citation to the appropriate United States Attorney. The United States Attorney is then required to bring the matter before the grand jury. Id.

United States v. House of Representatives, 556 F.Supp. 150, 152 (D.D.C. 1983).