-- A quest for better urine testing certainly isn't the only answer-- I've read that other teams, AG2R in particular, said they can detect doping just by looking at the SRM data from the riders.
-- The police could also recruit a mole or two. I'm sure there's more than a few riders sickened by what's going on in the peloton. Hard evidence could be collected this way, and I'm sure the rider wouldn't be professionally killed, Soprano style, if discovered.
-- I just finished reading a Michael Barry's interview in ProCycling and his reation to current doping situation is that most of the problems were created from just a few teams-- make the team responsible, not just the rider.
It's certainly another answer-- 2-year ban on the entire team.
-- but as you were saying someone needs to step up.
FP........................................................