Hillary Clinton will testify in front of Congress about the terrorist attack on the American consulate in Benghazi, Libya - despite receiving a concussion and being hospitalized for a blood clot, it was revealed on Thursday. 

The Secretary of State cancelled appearances before the Senate Foreign Relations Committee and the House Foreign Affairs Committee after she fainted and hit her head on December 9.

She sent two aides to testify in her place.

Some conservatives initially claimed she was using the health issue to dodge testifying on the contentious issue.

Some Senate Republicans have threatened to block the confirmation of Sen John Kerry, Clinton's successor as Secretary of State, until Clinton testifies.