Justice Department attorneys are reviewing the possibility of charging Director of National Intelligence James Clapper for perjury, as Rep. Jim Sensenbrenner, R-Wis., wants, for his statements during a Senate hearing about National Security Agency data collection.

“We take our responsibility seriously to investigate allegations of perjury,” Holder told Sensenbrenner during a House Judiciary Committee hearing Tuesday morning. “With regard to this specific matter … it is something, as I said, that we are looking at the materials presented to us and an action will be taken that is appropriate.”