While tiptoe-ing into the forbidden zone (Skuzzy-wise), I'll offer this bit of perspective on the subject. This is not an unprecedented incident. Remember Beirut and Reagan? Cyprus and Ford? Saudi Arabia and Nixon? As far as I know we didn't go to war over any of those Ambassadors (and US soldiers) getting killed.
Read Reagan's diary and you will see what we did regarding Beirut. Among other actions he sent a battleship and other forces and basically shelled the origination point of any hostile fire. There is a huge range of options between apologizing for somehow forcing people to riot and set up a massive ambush to murder an ambassador, and declaring war on a nation. I don't think anyone is calling for "war" against Libya. People ARE however calling for the truth about a massive coverup regarding how a sitting president is apologizing for the US being somehow wrong for having, as the very first amendment to our nation's constitution, the right of free expression, and calling for some sort of explanation of why an obscure and not very well made video is being blamed for a series of riots and a very well planned and executed ambush of our ambassador. Further, people want an explanation as to why that very ambassador's messages expressing concerns for the security of both himself and his entire diplomatic mission were not acted upon, especially on the anniversary of the single worst and most damaging attack on US soil in history while the nation is STILL AT WAR with those responsible for the 9/11 attacks.
All we've had is a coverup, trying to blame some obscure US citizen for the murder of a US ambassador, and an apology for the US daring to have freedom of expression/speech.
Frankly, trying to say other past presidents did nothing following attacks on US soil or our embassies is a pretty dumb thing to do especially when you don't really know what they DID do. Reagan responded with highly targeted force plus the most successful diplomatic efforts in the middle east we've ever had. Reagan's efforts led to over 30 years of relative stability with Egypt as our stauchest ally in the area, until President Obama deliberately threw Mubarak under the bus thereby destroying any incentive of any middle eastern or north African leader to cooperate with us. 30 years of diplomatic efforts led by Reagan and Carter, down the tubes, leading directly to the ambush and murder of an ambassador.