Did the State Department reduce security in Libya before the 9/11 attacks?

The House Oversight Committee has been investigating the attack on the U.S. consulate in Benghazi, Libya, which resulted in the deaths of Ambassador Christopher Stevens and three other Americans.  National Security subcommittee chair Jason Chaffetz (R-UT) has relayed a devastating allegation from whistleblowers: even though the security situation in Libya was obviously deteriorating, the State Department actually reduced the number of American security personnel in the weeks before the attack, relying more heavily on Libyan guards.

Not only did those Libyan guards ultimately betray the Ambassador to his killer, but some of them actually carried out a minor explosive attack on the consulate in April, after their employment was terminated.

As quoted by Eli Lake at the Daily Beast, Chaffetz said on Wednesday, ???The fully trained Americans who can deal with a volatile situation were reduced in the six months leading up to the attacks.  When you combine that with the lack of commitment to fortifying the physical facilities, you see a pattern.???

Secretary of State Hillary Clinton has been stalling on compliance with House Oversight requests for documentation on these decisions, because we???re all supposed to wait for some sort of State Department internal investigation to conclude.  Estimated minimum time to completion: 33 days.