It's not just the IRS.
A second federal agency is facing a probe and accusations of political bias over its alleged targeting of conservative groups.
The allegations concern the Environmental Protection Agency, which is being accused of trying to charge conservative groups fees while largely exempting liberal groups. The fees applied to Freedom of Information Act requests -- allegedly, the EPA waived them for liberal groups far more often than it did for conservative ones.
The allegations are under investigation by the House Energy and Commerce Committee and the House Oversight and Government Reform Committee, which is also holding hearings on the Internal Revenue Service targeting of conservative groups.
"I don't think it is fair at all. It is not fair to the American taxpayer -- the American taxpayer should expect and demand that the EPA treats everyone equally in regard to these requests," said Pennsylvania Republican Rep. Tim Murphy, a member of the Energy and Commerce Committee. "This cannot be tolerated. As we see more federal agencies with this kind of bias, it is and should be a concern for all of us."