Rising waters in the Des Moines River are threatening Iowa's state capital with mandatory evacuations. Voluntary evacuations already had been called for. The Cedar and Iowa Rivers are among those still rising. Thirty-five highways are already closed in the state's worst flooding ever. In Cedar Rapids, 135 patients on wheelchairs and stretchers have been evacuated from the Mercy Medical Center. Steve Buttry, editor of The Gazette in Cedar Rapids, has an update.