McClatchy analyzed all of the government's statements following the Libya attack. They have some interesting findings. It looks like someone realized that an attack in Libya might cast doubt on President Obama's foreign policy and decided to try to deflect attention from that policy.
In the first 48 hours after the deadly Sept. 11 attacks on U.S. diplomatic outposts in Libya, senior Obama administration officials strongly alluded to a terrorist assault and repeatedly declined to link it to an anti-Muslim video that drew protests elsewhere in the region, transcripts of briefings show.
The administration’s initial accounts, however, changed dramatically in the following days, according to a review of briefing transcripts and administration statements, with a new narrative emerging Sept. 16 when U.S. ambassador to the United Nations Susan Rice asserted in a series of TV appearances that the best information available indicated that the attack had spun off from a protest over the video.
... The story, however, began to change the next day, Sept. 14.
With images of besieged U.S. missions in the Middle East still leading the evening news, White House Press Secretary Jay Carney became the first official to back away from the earlier declaration that the Benghazi assault was a “complex attack” by extremists. Instead, Carney told reporters, authorities “have no information to suggest that it was a preplanned attack.” He added that there was no reason to think that the Benghazi attack wasn’t related to the video, given that the clip had sparked protests in many Muslim cities.
“The unrest that we’ve seen around the region has been in reaction to a video that Muslims, many Muslims, find offensive,” Carney said.
When pressed by reporters who pointed out evidence that the violence in Benghazi was preplanned, Carney said that “news reports” had speculated about the motive. He noted again that “the unrest around the region has been in response to this video.”
Carney then launched into remarks that read like talking points in defense of the U.S. decision to intervene in last year’s uprising against Libyan leader Moammar Gadhafi: that post-Gadhafi Libya, he said, is “one of the more pro-American countries in the region,” that it’s led by a new government “that has just come out of a revolution,” and that the lack of security capabilities there “is not necessarily reflective of anything except for the remarkable transformation that’s been going on in the region.”