You can free up ~4500 per adult in the US "just" by redirecting the "mandatory" portion of the Social Security Administration and the Department of Agriculture (which I believe is largely food subsidies, but I could be wrong about that). Drop Medica.. and tell people to spend some of their BI on insurance if they need it and you can just about double it, with no tax increases at all.

http://en.wikipedia.org/wiki/2013_United_States_federal_budg...