Were they running a shady operation? A new report alleges that Russian athletes, coaches and doctors have been involved in state-sponsored doping since the 1970s. It says false identities, bribes and intimidation have been used to avoid steroid testing and quash positive results. Citing the London 2012 Olympics as just one event “sabotaged” by Russian unwillingness to punish athletes for doping, the agency is recommending that the country be banned from track and field competitions in Rio next summer. Now the Kremlin’s demanding more evidence but says it’s open to cooperating in theory.