“In 2009 a Jordanian using the nom de guerre Abu Dujannah al Khorasani…persuaded the Jordanian General Intelligence Department (GID) to take him on as a double agent against al Qaeda. Under his real name, Human Khalil Abu Mulal al Balawi, he had previously been a propaganda specialist for al Qaeda’s franchise in Iraq and its dead leader Abu Musaib al Zarqawi, so his story seemed plausible. Khorasani went from Jordan to Pakistan and on his arrival contacted the GID, claiming to have information on the location of [al Qaeda second-in-command Ayman al] Zawahiri. The bait was dangled. But Khorsani was actually a triple agent, still working for al Qaeda. On December 30, 2009, he blew himself up once inside the CIA’s base in Khost, Afghanistan, killing seven CIA officers and the Jordanian intelligence specialist who was his case officer. …It was the second worst day ever in CIA history. …Al Qaeda took credit for the attack…”
– Bruce Riedel, Deadly Embrace, Page 99