WSJ:

The new Republican-controlled Congress is trying to pump fresh life into a long-running probe of alleged targeting of conservative groups by the Internal Revenue Service.

Seeking to jump-start the stalled inquiry, GOP lawmakers raised concerns at a House hearing on Thursday night about possible IRS wrongdoing during the course of the probe.

The hearing by the Oversight and Government Reform Committee revealed few new details, however, and Democrats accused Republicans of airing the allegations prematurely, before all the evidence has been gathered….

Investigators from the IRS inspector general’s office also suggested some unnamed IRS officials might have withheld crucial information about the backup tapes. “There is potential criminal activity,” said deputy inspector general Timothy Camus, in response to a question by Rep. Jim Jordan (R., Ohio).

Mr. Camus and his boss, IRS inspector general J. Russell George, cautioned repeatedly that their investigation isn’t yet complete, and Mr. Camus acknowledged that suspicions of withholding evidence might prove unfounded.