Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

intl olympic committee russians doping walsh pkg_00001513
intl olympic committee russians doping walsh pkg_00001513

    JUST WATCHED

    Inside Rio's 24-hour anti-doping lab

MUST WATCH

Inside Rio's 24-hour anti-doping lab

CNN's Nick Paton Walsh takes a look inside a 24-hour lab dedicated to keep the Brazil Olympic games doping free.

Inside Rio's 24-hour anti-doping lab

CNN's Nick Paton Walsh takes a look inside a 24-hour lab dedicated to keep the Brazil Olympic games doping free.