An artist named Mibi On Deviantart has created A Graphical Representation Of What America Spends It's Tax Dollars On.
The surprising thing is that 68% of what Americans pay in tax goes to Security, either military or none-military. I don't know how much of the tax I pay goes to security, but looking at the size of the US army and the equipment that they have compared to to the UK forces, I suspect that it isn't even close to as much as 68%. It is interesting to think wither that money is well spent or not.
I suspect that most people presently will say no because America uses it's military to solve some of it's problems. Problems that could been avoided if less money was spent on the military.