Published: Oct 23, 2010 8:25 PM EDT
Updated: Oct 23, 2010 5:25 PM EDT

CAIRO (AP) - Adam Gadahn is back in a new Internet video. In it, the U.S.-born al-Qaida spokesman says it's a duty of Muslims living in the United States and Europe to carry out attacks.
      
Gadahn directs his appeal to Muslim immigrants in what he called the "miserable suburbs" of Paris, London and Detroit, as well as those traveling to the West to study or work.

Gadahn grew up on a farm in California and converted to Islam before moving to Pakistan in 1998 and reportedly attending an al-Qaida training camp. He has been wanted by the FBI since 2004.

He spoke in Arabic in the 48-minute video made available by the U.S.-based SITE Intelligence Group, which tracks terrorist activity.
      
Gadahn also sought to discredit attempts by moderate Muslim leaders to suppress the "jihadi awakening."