[SunkenCiv]

That's obstruction of justice, in an attempt to mask premeditated violations of Constitutional rights, IOW, an impeachable offense.

...Treasury deputy inspector general Timothy Camus told Congress that the IRS never asked IT professionals at the New Martinsville, W.V. storage site for the backup tapes. Camus only found the backup tape for Lerner’s missing 2011 emails about two weeks ago. But the Obama administration knew that emails were stored at off-site facilities, and even shut down a legal request to send somebody to go look for them.

[GOPJ]

...obstruction of justice