Obama administration continues its stonewalling of Fast & Furious documents

Here is the question.  What is so damaging in the Fast & Furious documents that the Obama administration wants to fight so publicly over not giving out documents?  So much for the most open administration in history.  From CBS News:

House Republicans investigating the Fast and Furious scandal plan to pursue a contempt citation against Attorney General Eric Holder, senior congressional aides told CBS News.
The resolution will accuse Holder and his Justice Department of obstructing the congressional probe into the allegations that the government let thousands of weapons fall into the hands of Mexican drug cartels.
The citation would attempt to force Holder to turn over tens of thousands of pages of documents related to the probe, which has entered its second year.
For months, congressional Republicans probing ATF's Fast and Furious "Gunwalker" scandal - led by California Republican Rep. Darrell Issa, have been investigating a contempt citation. They've worked quietly behind the scenes to build support among fellow Republicans, since it could ultimately face a full House vote.
CBS News has confirmed that House Speaker John Boehner, an Ohio Republican, was provided a 48-page long draft by Issa, who heads the House Oversight and Government Reform Committee. . . .

From the Daily Caller:

The Obama administration has stonewalled Congress on the issue, refusing to reply to subpoenas from House Oversight Committee Chairman Rep. Darrell Issa. Out of 80,000 pages worth of documents Issa has lawfully subpoenaed, the DOJ has only provided about 6,000 or 7,000 pages to Congress. The DOJ has, however, given all of those documents to its internal investigator, the inspector general. . . .