Fireworks erupted at a House Foreign Affairs Committee hearing Thursday when the nation’s top diplomat was pressed on why the State Department has not branded the ISIS massacres of Christians a genocide.

Secretary of State John Kerry agreed that “something needs to be done quickly” but said they have to do more legal legwork before that designation is made.

“The whole world knows Christians are being slaughtered in the Middle East,” said Rep. Dana Rohrabacher, a California Republican and frequent critic of the Obama Administration.

Rohrabacher also was not satisfied when Kerry said the greatest threat to the U.S. is “violent extremism, radical religious extremism.”