International Olympic Committee (IOC) President Thomas Bach (bottom C) takes a group photo with members of the PyeongChang Organizing Committee for the 2018 Olympic and Paralympic Winter Games (POCOG) after a news conference in Seoul November 21, 2013. Anti-doping measures for the 2014 Sochi Olympics will be the toughest of any Winter Games, Bach said on Thursday. Bach, speaking to reporters in Seoul on a visit to check preparations for the 2018 Pyeongchang Games, said the IOC would conduct more in- and out-of-competition tests for the Sochi Olympics than Vancouver 2010. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: SPORT OLYMPICS DRUGS SOCIETY)