With that said though, Arum is BSing of course. No need to discredit USADA. This is just a matter of pride and principles IMO, they won't let Floyd dictate everything.
Not saying they have, but it wouldn't surprise me if USADA have covered up a couple of positive tests. Like the Armstrong-case and so forth. But you'll always have that problem, everyone can be bought. Until boxing can handle a solid testing regimen of their own USADA is the best way to go.
Only problem is how to implement it. 2 months every 6-18 months is no way near sufficient.