Outgoing Secretary of State Hillary Clinton delivered a parting shot to critics of her response to the Sept. 11 attack on the U.S. Consulate in Benghazi, Libya.

Sens. John McCain, R-Ariz., Lindsey Graham, R-S.C., and others say they still want answers about why there wasn't more security at the mission where four Americans died.

They've also accused the Obama administration of misleading the public about who carried out the attack in the days after the incident.

Clinton said her critics don't live in an "evidence-based world" and that it's regrettable they don't accept the administration's explanations.

"There are some people in politics and in the press who can't be confused by the facts," she said. "They just will not live in an evidence-based world. And that's regrettable."

"It's regrettable for our political system and for the people who serve our government in very dangerous, difficult circumstances," she said.