Guardian report.
Pakistani intelligence officials today denied that an American militant suspect arrested in Karachi was al-Qaida's US-born spokesman.
Yesterday two intelligence officers and a senior government official identified the detained man as Adam Gadahn, a 31-year-old California-born convert to Islam who has appeared on videos threatening the west, including one that emerged earlier the same day.
But a senior government official and two security agents said today the suspect was not Gadahn.