. Abd al Hadi Abdallah Ibrahim al Shaikh of Saudi Arabia , who was released in 2007 , was arrested in 2008 by Saudi authorities on suspicion of supporting terrorism inside that country , the military said . On Tuesday , the Pentagon released information that showed 14 percent of former detainees have turned to , or are suspected of having turned to , terrorism activity since being released from Guantanamo . The data represent the most recent statistics of former detainees tracked by military and other U.S. government intelligence agencies . The report shows that of the more than 530 detainees released from the prison , 27 have been confirmed to have engaged in terrorist activities and 47 are suspected of participating in some kind of terrorist act . The statistics indicate that there has been a slight increase since the end of 2008 , and the number of released detainees turning to or suspected of turning to the insurgency is almost doubled from the 7 percent in that category a few years ago , according to Pentagon officials familiar with the information . The report said that between December 2008 and March 2009 , nine former detainees were
WASHINGTON -LRB- CNN -RRB- -- Mohammed Ismail was released from the U.S. detention facility at Guantanamo Bay , Cuba , in early 2004 and sent back to Afghanistan to be set free . A guard talks with a detainee at Guantanamo Bay , Cuba , earlier this year . Within four months , the U.S. military said , he was recaptured in Afghanistan attacking U.S. troops there , with paperwork on him that said he was a Taliban in good standing . He is just one of 74 former Guantanamo Bay detainees who the military says were active in , or were suspected of being active in , fighting against the United States or committing terrorist acts after being released . Another is Abdullah Gulam Rasoul , who was released from Guantanamo in December 2007 and set free in Afghanistan . Rasoul has become a powerful Taliban military commander in southern Afghanistan , the military said , and the United States suspects he is responsible for several attacks on U.S. forces there . A senior U.S. military official said he believes Rasoul is using his former Guantanamo experience to build on his `` rock star status '' among the Taliban