Policy Outlays by Category 
The chart above, however, does not contain the most recent federal budget data released by the government. Pasted below is a similar chart from the most recent OMB report — Budget of the U.S. Government: Fiscal Year 2011 (PDF). You can find the chart in the section titled “Summary Tables,” and a host of other information about government spending in the full report. While this chart, unfortunately, does not contain the percentages of government spending by category, you can clearly see that the outlays for national defense (labeled “security discretionary”) are again clearly larger than the outlays for Medicare, net interest and all non-security discretionary spending (which includes a small slice for education).
Policy Outlays by Category  | 2011  | Security Discretionary  | Net Interest  | Other Mandatory  | Disaster Programs Costs and  | Discretionary Non- -Security  | Disaster Programs Costs  | Discretionary -Security  | Social Security  | Medicaid  | Medicare 