bobbymike said:
Defense spending as a percentage of federal outlays since 1950. Apparently we used to spend more on defense compared to the entire budget than we do today. But defense is obviously the problem.
http://upload.wikimedia.org/wikipedia/en/thumb/2/27/U.S._Defense_Spending_-_%25_t

utlays.png/800px-U.S._Defense_Spending_-_%25_t

utlays.png
Another case of a poor chart, that merely states defence spending as a percentage of total government expenditure but as it does not provide the percentage of GDP being spent by the government it is utterly useless.
The proportion of GDP spent by the state has exploded thus reducing the percentage of the total budget spent on defence even if the fall in defence expenditure as a proportion of GDP has not seen such dramatic falls.
http://www.afji.com/2007/03/2545232/
Note that even during the Reagan buildup US defence spending only reached 6.2% of GDP, in FY10 it is 4.7%. That is equivalent of the Cold War low reached in 1979 also of 4.7%.