As I recall, Hillary Clinton called a meeting like this when the Rose Law Firm and corruption in Arkansas was being investigated. My guess is that this is a CYA meeting and that people will be told to purge there files of anything that may incriminate the Obama Administration. There have been reports of the Obama Administration working with the Muslim Brotherhood, etc.
I think it is a meeting to destroy any evidence that could be used against Hillary Clinton and/or the Obama Administration.