It's interestking that you quote Rep. John Spratt in your post. The people of South Carolina were wise enough to throw this moron out of office a couple of years ago. Total hack.
As far as cost of wars. The cost as a % of GDP is, of course, going down. Relative cost always goes down as a percentage of effort. WWII was a serious effort. Since then we have been namby pamby about war.
It's social prgrams that are crippling us, not war. That plus outrageous salaries to civil service folks. You might be considered in that lot.