Here's a high ranking (Republican) IRS official responding to an admitted planted question regarding whether the IRS was targeting 501(c)(4) applications from tea party organizations:

“Instead of referring to the cases as advocacy cases, they actually used case names on this list,” Lerner said, according to a transcript of the meeting. “They used names like Tea Party or Patriots and they selected cases simply because the applications had those names in the title. That was wrong, that was absolutely incorrect, insensitive, and inappropriate — that’s not how we go about selecting cases for further review.”

So she blows the whistle on "Obama's IRS" targeting the yahoos. Neglecting to mention that this keyword targeting was being applied to both sides of the political spectrum. Swell.

Then gets hauled up before a congressional hearing and refuses to answer questions.

Tell us Lois...what is it that you know that we don't?

They need to offer her immunity so that she no longer needs to fear self incrimination. Then we might learn whatever it is that she is hiding, if anything.