Steroids Steroids Steroids ... in the UFC

With the recent rash of championship calibre UFC fighters testing positive for steroids (Chael Sonnen being the biggest name to date), I wonder what will happen to thwart the danger of one of these guys doing serious damage in the ring to another fighter. It's very much about the integrity of the sport (don't get me wrong) but in the case of MMA there is a serious danger that doesn't exist nearly as much in other sports. That danger is the health of an opponent being put at risk. If Chael had seriously hurt Anderson Silva (the best pound for pound fighter on the planet) can you imagine the repercussions and potential damage to the UFC. To say that Chael was stupid is an understatement (assuming he did this - he is appealing). Anyways, I just think the UFC needs to think about the additional risk they particularly have versus other sports.