Humam Khalil Abu-Mulal al-Balawi is believed to be the suicide bomber who killed seven CIA operatives last December.

Prior to a suicide attack on a CIA base in Afghanistan last December, some people within the CIA and the Jordanian intelligence service were skeptical about the reliability of a Jordanian informant, but those concerns were not passed on to officers on the base, according to a U.S. intelligence official.

A Jordanian intelligence officer told his U.S. counterpart in Amman, Jordan, that Humam Khalil Abu-Mulal al-Balawi might be working for al Qaeda and could be attempting to lure the Americans into a trap, but "unfortunately, some of those concerns weren't properly documented or conveyed through formal channels," the U.S. official said.

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