I really do wish him the best of luck with that. But it's hard to be optimistic. As Adams himself points out, the original architects of the expanded international anti-genocide principles back in 2001 -- known as the "Responsibility to Protect," or R2P -- foresaw that it would be extremely hard to against mass atrocities in cases where U.N. Security Council members were opposed to acting. That, of course, is exactly what's now come to pass in the case of Syria.
In any case, it's time to acknowledge that one consequence of the international community's failure to press for stronger action in the past is that it leaves us ill-equipped to make the case for preventing the revenge killings that are likely to come. Let's hope that the Syrian rebels have the wisdom to see the rationale for restraint as the war enters its next phase. They certainly have little cause to listen to our advice.