From the Los Angeles Times:

Lois Lerner, the head of the exempt organizations division of the IRS, won’t answer questions about what she knew about the improper screening – or why she didn’t reveal it to Congress, according to a letter from her defense lawyer, William W. Taylor 3rd.

Lerner was scheduled to appear before the House Oversight committee Wednesday.

“She has not committed any crime or made any misrepresentation but under the circumstances she has no choice but to take this course,” said a letter by Taylor to committee Chairman Darrell E. Issa, R-Calif. The letter, sent Monday, was obtained Tuesday by the Los Angeles Times.

This is going to get very interesting as the search for the truth continues into who gave the order to target groups aligned with the Tea Party movement and a belief in limited, constitutional government.