Here is a great site that gives a running total of the cost war cooresponding to differenct aspect of the american government http://nationalpriorities.org/index.php?option=com_wrapper&Itemid=182 My thoughts on this thread are not to turn it into a political debate. Opportunity cost comes in many different varieties. I was amazed that the cost thus far could have given every child in the world basic immunizations for 74 years. When there is a big line of zeros after a number, its hard to see how much something costs.