Moral Conundrum in Syria

I've just watched Peggy Noonan on ABC's _This Week_.  She was stressing the moral dimension of President Obama's proposed intervention in Syria, saying that it was necessary to underscore the immorality of using poison gas.

But, by the same token, do we wish to support the rebels, who are trying to cleanse their areas of Syria of the ancient Christian communities resident in them?  Syrian Christianity predates even the conversion of Paul the Apostle, who, after all, received baptism from a Damascene named Ananias (Hananiah) while sheltering in the home of another named Judas. This would place the beginnings of the Syrian churches in the years immediately following the death and resurrection of Jesus Christ.  Support for the Syrian rebels thus is support for genocide, an issue against which we supposedly came down firmly in Bosnia and Kosova during the Clinton administration.

Granted, the Assad regime is an odious one modeled on interwar European fascism and kept in power largely by the lingering effects of Cold War-era Soviet Communist strategic interests which post-Communist Russia apparently wishes to continue.  However, support for the Syrian is also fraught with moral conundrums.