World champion Coleman and Salwa Eid Naser could miss the Tokyo Games for what are known in the anti-doping world as whereabouts failures. Since early 2001, when the U.S. Anti-Doping Agency's whereabouts system began, there have been 21 whereabouts sanctions out of 175,000 completed tests. Coleman's latest case brought a flurry of Monday morning quarterbacking from the track world, much of it on social media. Set a recurring daily alarm 15 minutes before your hour window. It shows theyre doing their job.The whereabouts system came under a uniform global protocol in 2009.