If Obama tells why he is so certain you can be rest assured what would happen to Assad's inner circle convert! I can tell you this much though: Your beloved and concerned Putin (Amazing what media would have you believe) will not shelter the one like he did to Snowden, nor would he spread flowers on a shiny red carpet for the one within Assad's circle to jolly walk in slow motion low gravity moves neither!
Whether US should attack Syria or not is a different issue!
You see there is plenty of stuff to argue with these. Starting from, why do you fall for rival propaganda as easily? I mean I could understand putting both perspectives into the table and analyze and critically evaluate the two sources. But what you have done throughout this thread is only point out moves from the Russian's perspective! Why is that?