Mom (who taught school for 56 years) always solved the "who done it" finger pointing among the two children in a fight by punishing both. The cause of the fight was not the issue. After all it takes two to fight regardless of who lit the fuse. In some cases an entire classroom would be punished for not self regulating the perpetrators.
And so we have the challenge of determining whether to get involved with the Syrian civil war. Who (or which side) initiated the chemical warfare? Can we really establish "red lines" for umpiring weapons of mass destruction. Hmmmm - it is ok to fight and kill - just do it in conventional ways.
The American people overwhelmingly do not want to enter into the Syrian conflict yet our representatives are likely going to vote for a "limited" strike.
Limited to what? Being a "Bully for the Day".