The most important question to me about the Syrian war is how the U.S. is going to pay for it. Whether the intervention costs a little or a lot of money, I believe the U.S. cannot afford to commit to an intervention without having a plan to pay for war.
If some in Washington feel that an intervention in Syria is key to U.S. national-security interests, then they should identify lower-priorities that the Pentagon should cut. An alternative plan would be to make the case for a war tax.
It is likely that the war won't go as advertised because some Republicans have already said that they will only support the administration if this small first step is part of a much bigger strategy for military intervention.
No one had any idea how costly the wars in Iraq and Afghanistan would be. The Bush administration estimated the war would cost $50 billion to $60 billion. As of 2013, the Cost of War Project estimates the war has cost $1.7 trillion - nearly 30 times the pre-war estimate. That cost doesn't factor in future costs of veterans' care, which push the total to more than $2.1 trillion. Our national debt is already too large and more wars will bankrupt this country!