[Cboldt]

-- I don't think you can plead the 5th before congress --

If you are granted immunity, then you must testify. And, Congress has the power to grant immunity. Absent a grant of immunity, an individual has the right to assert the fifth amendment.

Walsh Iran / Contra Report - Chapter 2 United States v. Oliver L. North

[Alberta's Child]

I've always found the legal proceedings surrounding Oliver North to be among the most interesting legal stories in my lifetime. I love the ultimate conclusion that was included in that link you posted:

The prosecution may have prosecuted the case well, and the case included several landmark rulings related to the prosecution of former U.S. executive branch appointees in criminal cases ... but it was all ultimately meaningless because the immunity granted to North by Congress made any attempt to prosecute him a waste of time. LOL.