From Huffington Post April 24, 2010
Excerpt--"Everything that goes into defense costs us about a trillion dollars a year, most of which goes into fighting the Russians in 1978. Fighter planes for all those dog fights we get into with the Taliban, submarines to foil their evil plot to blow up our ships with car bombs, and space lasers to shoot down their exploding underpants...scream about handouts, this is what they should be protesting."
If you are interested in this question about how we as a society allocate resources, I recommend the film "Why We Fight" featuring extensive interviews with Chalmers Johnson and testimonial footage from President Dwight Eisenhower and his surviving family members.
Why We Fight on Google Video