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Congress can't officially referee the chess game between the NFL and its players' union regarding the implementation of testing for human growth hormone, but some flags were thrown anyway during a hearing Wednesday on Capitol Hill.

The tradition of infighting and territorialism between agencies and authorities with overlapping jurisdiction in the anti-doping world is waning. If that continues, athletes who dope might find that, although there are ways to beat a test, it will become a lot harder to beat an entire system.