Frankly, "retaliation" for the chemical attacks will accomplish next-to-nothing.
If we want to "accomplish" something, we need to cut the head of the snake off.
That means getting rid of the person who probably made the decision -- Assad.
Are we willing -- or capable -- of doing that?
Addendum:
If -we- can't do it, there's an outfit that can.
Time to call in some chits and have "the boss" of that outfit turn his guys loose!