Jeff Kahn (C) reacts after he was tasered during a demonstration at the Taser International booth during the 2007 International CES in Las Vegas, Nevada January 8, 2007. Taser employees Justin Hesse (L) and Charles Foster keep him from falling. The consumer versions of the law enforcement taser are expected to be available in the Spring and will retail for $299.95-$349.95, a representative said. REUTERS/Steve Marcus (UNITED STATES)