Swiss researchers say it’s impossible to verify that the latest tape recording attributed to Osama bin Laden is actually bin Laden. The Swiss Broadcasting Corporation website, SwissInfo.org, reports researchers at the Dalle Molle Institute for Perceptual Artificial Intelligence analyzed an earlier recording the Bush administration attributed to bin Laden, and concluded it was almost certainly faked. The Swiss analysts say the poor quality of the most recent recording, coupled with the limited number of voice samples, mean it is unlikely the recording can ever be authenticated.