The managers of Germany's ZDF said Thursday the public television network might cease broadcasting the Tour de France in reaction to winner Floyd Landis testing positive for testosterone. "We signed a broadcasting contract for a sporting event, not a show demonstrating the performances of the pharmaceutical industry," ZDF editor-in-chief Nikolaus Brender said. "We are going to think about our future as broadcaster and maybe refuse to broadcast this event." Even before the race started on July 1 it was engulfed in doping controversy, with top German contender Jan Ullrich, his T-Mobile teammate Oscar Sevilla and Italian Ivan Basso among nine...