A new audio tape is released by a man thought to be Osama bin Laden. The voice on the tape tells the various groups in Iraq fighting the US to unify, but contains no dated references, so it is unclear when it was made. The voice says, “Beware of your enemies, especially those who infiltrate your ranks,” and, “You have done well to perform your duty, but some of you have been late to another duty, which is to unify your ranks and make them into one line.” [CNN, 10/22/2007]