Mufid A. Elfgeeh , 30 , was arrested on May 31 , though federal officials did n't outline the case against him until last week . Fighting the U.S. is ` ` a code of conduct '' that helps ISIS recruitment , he said . But taking on the world 's top military leader also comes with risks . American intelligence officials have said they 're not aware of an ISIS presence inside the U.S .
Fighting the U.S. is ` ` a code of conduct '' that helps ISIS recruitment , he said . But taking on the world 's top military leader also comes with risks . American intelligence officials have said they 're not aware of an ISIS presence inside the U.S .