Complex sentence: After this episode, the GID and CIA believed they had turned al-Balawi into a double agent who would infiltrate al-Qaeda in the Federally Administered Tribal Areas in Pakistan, along the Afghan border.
Split into simpler sentences: After this episode, the GID and CIA believed they had turned al-Balawi into a double agent. A plan developed for al-Bawali to infiltrate al-Qaeda in the Federally Administered Tribal Areas in Pakistan, along the Afghan border.