http://www.politifact.com/truth-o-meter/article/2013/may/08/context-hillary-clintons-what-difference-does-it-m/
Johnson: No, again, we were misled that there were supposedly protests and that something sprang out of that -- an assault sprang out of that -- and that was easily ascertained that that was not the fact, and the American people could have known that within days and they didn’t know that.
Clinton: With all due respect, the fact is we had four dead Americans. Was it because of a protest or was it because of guys out for a walk one night who decided that they’d they go kill some Americans? What difference at this point does it make? 
It is our job to figure out what happened and do everything we can to prevent it from ever happening again, Senator.