[Ray76]

Koskinen said her emails were on tape but it was too complicated to retrieve them, and they didn’t bother tying to retrieve them - at least not to his knowledge.

Jazon Chaffetz starts at about 1:50:00.

http://www.c-span.org/video/?320097-1/irs-targeting-investigation

[Rightwing Conspiratr1]

Koskinen said her emails were on tape but it was too complicated to retrieve them, and they didn’t bother tying to retrieve them - at least not to his knowledge.

The tapes are stored offsite which means they'd have to be signed out by someone. That makes retrieval followed by "destruction" or "accidental loss" complicated. They need to find a Sandy Berger to make the retrieval. ;-)