The Daily Beast 
Oct 2, 2012
Jihadists twice set off explosives at the consulate prior to the incident that killed Ambassador Chris Stevens, and announced threats on Facebook about escalating attacks on Western targets in the run-up to the 9/11 anniversary, according to whistleblowers reaching out to House Republicans.
In the five months leading up to this year’s 9/11 anniversary, there were two bombings on the U.S. consulate in Benghazi  and increasing threats to and attacks on the Libyan nationals hired to provide security at the U.S. missions in Tripoli and Benghazi.
Details on these alleged incidents stem in part from the testimony of a handful of whistleblowers who approached the House Committee on Oversight and Government Reform in the days and weeks following the attack on the Benghazi consulate. The incidents are disclosed in a letter to be sent Tuesday to Hillary Clinton from Rep. Darrell Issa , the chairman of the House Committee on Oversight and Government Reform, and Rep. Jason Chaffetz, the chairman of the oversight committee’s subcommittee that deals with national security.
The State Department did not offer comment on the record last night.