With active unemployment at 9% and more underemployment, consider what would happen if suddenly there were no unemployment benefits and no food stamps. Since you are probably a supporter of the 2nd amendment, consider what these suddenly hungry people would do about their situation. Unless you live way out in the country, you would probably be very unhappy with the results.
In addition to the programs you mention for cutting, remember that salaries have to be paid to all those employees who are sending out the checks for social security, medicare, veterans benefits, military pay, etc.