The former head of U.S. forces in Afghanistan, General David Petraeus, has begun his new stint as head of the CIA. Petraeus was sworn in at a ceremony on Tuesday.

Gen. David Petraeus: “Thanks in advance to the tremendous men and women at the Central Intelligence Agency. That is a great organization with great people and a great mission, and I am very excited to have the opportunity to join them and indeed to be their director.”