The suspected Jordanian double agent who killed eight people on a CIA base in Afghanistan was recruited by his country's intelligence agency after it threw him in jail to coerce him into helping them track down al-Qaida's No. 2 leader, counterterrorism officials in the Middle East said Tuesday. Three Middle Eastern counterterrorism officials said 32-year-old physician Humam Khalil Abu-Mulal al-Balawi was jailed for three days after he signed up for a humanitarian mission to the Gaza Strip with a Jordanian field hospital following Israel's offensive there. At that time, authorities were aware that al-Balawi had posted fiery writings on militant...