(CNN) – An audio message purportedly from al Qaeda leader Osama bin Laden has accused President Barack Obama of being unable to fulfil his election pledge to pull U.S. troops out of Iraq. [cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/WORLD/meast/09/14/binladen.message/art.obl.filer.gi.jpg caption="Osama bin Laden is seen in an image taken from a videotape that aired on Al-Jazeera in September 2003."] … Continue reading 'Bin Laden' tape: Obama can't stop war