Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) -- Conflicting reports emerged Sunday about whether Adam Gadahn, a U.S.-born spokesman for al Qaeda, has been arrested in Pakistan. A senior Pakistani government official told CNN that Gadahn was arrested Sunday in Karachi, and a second senior Pakistani government official later confirmed the arrest. But a U.S. intelligence official said there appears to be no validity to the reports that Gadahn was in custody, and other U.S. officials also said they have no indication that Gadahn has been captured. Reports of the arrest came hours after Islamist Web sites posted video of Gadahn praising the November massacre at Fort Hood, Texas. On the video, Gadahn said the U.S. Army major charged with gunning down 13 people "lit a path" for other Muslim service members to follow.NEW: Two Pakistani officials say Gadahn arrested; U.S. intelligence official casts doubtReport of arrest comes hour after video of U.S.-born Gadahn surfacesGadahn praises November massacre at Fort Hood, Texas, in videoIn 2006, Gadahn was indicted for treason and providing material support to terrorists 
 Question:In 2008, he renounced his _ citizenship and destroyed his passport in another al Qaeda video.

U.S.