Dopers face four-year bans from 2015

The World Championships kick off in Moscow this weekend amidst growing concerns over the state of the sport. Tyson Gay, Asafa Powell and Veronica Campbell-Brown have all recently failed drug tests, as have an alarming number of Russian and Turkish athletes.
Such developments have cast a cloud over the upcoming championships and led the International Association of Athletics Federations (IAAF) to yesterday reiterate their “unwavering commitment” against doping, with its council approving plans to revert to four-year bans for offenders from 2015.