[afsnco]

But she has no constitutional right to refrain from incriminating others... "No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger; nor shall any person be subject for the same offense to be twice put in jeopardy of life or limb; nor shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation." So that's why the only way she can clam up is to SAY it's due to fear of self-incrimination.

[eyeamok]

YOU HAVE NO SUCH RIGHTS BEFORE CONGRESS, It is not a “Court””

In 1821, the Supreme Court upheld Congress’s right to hold people in contempt and imprison them. Without this power, the court ruled, Congress would “be exposed to every indignity and interruption, that rudeness, caprice, or even conspiracy, may mediate against it.” Later, in a 1927 case arising from the Teapot Dome scandal, the court upheld the Senate’s arrest of the brother of a former attorney general — carried out in Ohio by the deputy sergeant at arms — for ignoring a subpoena to testify.

The Congressional Research Service issued a report in July that confirmed Congress’s inherent contempt powers. It explained how they work: “The individual is brought before the House or Senate by the sergeant at arms, tried at the bar of the body, and can be imprisoned in the Capitol jail.” Congress can do this, the report concluded, to compel them to testify or to punish them for their refusal to do so. “

[Ray76]

A Congressional investigation is not a criminal case.

Obstructing or impeding a Congressional investigation is a crime.

A witness under oath before a congressional committee who willfully gives false testimony is subject to prosecution for perjury under 18 U.S.C. § 1621.

False statements by a person in “any investigation or review, conducted pursuant to the authority of any committee, subcommittee, commission or office of the Congress, consistent with applicable rules of the House and Senate” are punishable under 18 U.S.C. § 1001 by a fine of up to $250,000 or imprisonment for not more than five years, or both.

Under 18 U.S.C. § 1505 whoever corruptly obstructs, or impedes the due and proper exercise of the power of inquiry under which any inquiry or investigation is being had by either House, or any committee of either House or any joint committee of the Congress— Shall be fined under this title, imprisoned not more than 5 years or, if the offense involves international or domestic terrorism (as defined in section 2331), imprisoned not more than 8 years, or both.

http://www.constitutionproject.org/documents/when-congress-comes-calling-a-primer-on-the-principles-practices-and-pragmatics-of-legislative-inquiry/