Footage of President John F. Kennedy being rushed to hospital as his life ebbed away could hold new clues to the unanswered questions that still swirl around his slaying. Newly emerged film of the motorcade speeding down a Dallas freeway toward a hospital after he was fatally wounded was sold at auction last month for $137,500, Knewz.com reports. Now academics are lining up to review the 10 seconds of celluloid for pointers that could shed new light on theories that Lee Harvey Oswald wasn't the