Well, John McCain tried.
After months of demanding answers about the attack on our Benghazi facility, he finally got his chance to cross-examine Hillary Clinton today. Moments ago, McCain gave a blistering statement, declaring from the beginning, "The answers, frankly, that you've given this morning are not satisfactory to me." He categorically rejected her response to another senator that they didn't know what sort of attack it was. He wondered why the administration tried to tell the American people what had happened when they hadn't even interviewed the people who were at the site of the attack. And besides, McCain exclaimed, "People don't bring RPGs and mortars to spontaneous demonstrations! That's a fundamental."
Clinton said she sympathized with McCain, a friend of Ambassador Stevens. She then ignored most of his inquiries and instead complained about holds that Congress had put on funding initiatives for Libya. "We have to get our act together between the administration and Congress," she declared.
It was more than Senator Ron Johnson (R-Wisc.) got. After Johnson asked several tough questions about Susan Rice, Clinton became indignant. "With all due respect, the fact is we had four dead Americans!" she shouted.
In other words, no answers, no responsibility, and some finger-pointing at House Republicans for good measure.
I suppose we shouldn't have expected anything more.