WASHINGTON (AP) - A congressman says David Petraeus is telling lawmakers he believed all along that the Sept. 11 attack on the U.S. Consulate in Libya was a terrorist attack. The former CIA chief is testifying behind closed-doors before the congressional intelligence committees. It's his first Capitol Hill appearance since resigning last Friday over an extramarital affair. Republican Rep. Peter King told reporters after the House hearing that Petraeus focused his remarks on Libya. Lawmakers say Petraeus told them that CIA talking points written after the attack in Benghazi that killed four Americans referred to it as a terrorist attack. But Petraeus says that reference was removed by other federal agencies that made changes to the CIA's draft. Republicans and some Democrats have demanded an explanation of why the administration initially said the attack stemmed from a protest over an anti-Muslim video. Petraeus was sneaked into the Capitol building for today's hearing through a network of underground hallways, out of the view of photographers and TV cameras.