Now, Im not a security expert. But I know that there are several crowd dispersal weapons that are not lethal. Everything from rubber bullets, sting grenades, flash bangs, tear gas, sonics, tasers, water cannons there are a lot of ways to disperse a crowd if you have enough personnel and are well prepared. We were not even badly prepared for what happened or what may be to come.
As for policy, Obama has accomodated those in opposition to us and refused to stand up for our allies enough that he is projecting weakness. He has a habit of waiting for certainty instead of projecting the idea of someone willing to shape events. The response from the White House was harsher towards Mitt Romney than it was towards those that killed our Ambassador! Thats a national disgrace.