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We already have as barry mentioned at the out set dna databases. so the world that you are worrying about is already here. we already have databases and indeed there may be arguments that this is a problem, this particular policy. because certain categories are being singled out. maybe in some ways, misery loves company. frankly i like the fact that they don't put me through the metal detector through at the airport, they put people who look like you through because i'm not singled out because i look a certain way. >> this is a grim vision with a quality where we subject everyone to dna testin...

she's 77 years old and she said time has come. she was okay with it. >> reporter: she's had quite a long time of being the most decorated olympian ever, hasn't she? upsteps michael phelps and it was widely expected to happen. it had been disappointing to this point but he is now the most successful olympian ever after picking up the silver and gold in the relay. the big question here, does that mean he's the greatest olympian ever because he has the most medals, is he the greatest or should that be measured in terms of long he havety or impact on the sport and legacy he leaves. there...