Andy Bacevich has three questions for the president before he pulls the trigger on Syria. Excerpt:

First, why does this particular heinous act rise to the level of justifying a military response? More specifically, why did a similarly heinous act by the Egyptian army elicit from Washington only the mildest response? Just weeks ago, Egyptian security forces slaughtered hundreds of Egyptians whose “crime” was to protest a military coup that overthrew a legitimately elected president. Why the double standard?

Second, once U.S. military action against Syria begins, when will it end? What is the political objective? Wrapping the Assad regime on the knuckles is unlikely to persuade it to change its ways. That regime is engaged in a fight for survival. So what exactly does the United States intend to achieve and how much is President Obama willing to spend in lives and treasure to get there? War is a risky business. Is the president willing to commit U.S. forces to what could well become another protracted and costly struggle?