I REALLY Don't Understand What The Big Deal Is

I saw the reports that said that the White House knew at a terrorist group claimed responsibility for the Libya killings within about 2 hours after they happened. I'm also seeing Republican-types practically doing backflips of anger over this news. One person I knew in high school claimed it was a modern-day Watergate, only bigger. Another person I know posted this on her Facebook page tonight:

"This is absolutely appalling and unbelievable! I cannot believe that we have a president that would put the blame on AMERICANS for this TERRORIST attack when he was told that they were under attack and that a TERRORIST group claimed responsibility on FB and Twitter. People died because of this and he covered up the truth! Why isn't this bigger news today???"

Maybe I sound completely stupid for asking this, but can someone please explain to me what the big F'ing deal is? So the President knew that SOME terrorist organization had claimed responsibility roughly 2 hours AFTER it happened? So what? Does finding out after the fact mean he could have somehow prevented it? Does a report telling him, "this group claimed responsibility," mean that he's required to do something he didn't do? Last time I checked, terrorist organizations have claimed responsibility for LOTS of things they didn't actually do. Was President Obama just supposed to take that e-mail and go off on a blind, major bombing spree? I guess I don't understand what these people think Obama did wrong and what happened that was SOOOOOO bad.

Or is it just that they're repeating the old, discredited meme of how Obama took 14 days to call it an "act of terror"? And even if that were true (which it clearly is NOT), why would that be so bad? What's wrong with wanting to get the FACTS before you go off half-cocked taking actions and/or making statements that are going to inflame anger/hatred/violence?

Can someone please explain this to me, because I really don't get why people are upset about this. I mean, it's not like he ignored a warning about a terrorist attack on the homeland only to see that very attack take place a month later or anything.