Create mandatory drug testing for all government assistance. Welfare, food stamps or Medicaid.

To ensure government monies are spent accordingly.
To help reduce the amount of abusive spending of Government dollars by those with malicious intent. Several families today on government assistance can truly justify it use. However, some families use it merely as a second income. Drug testing could help reduce the amount with spend annually on those who would abuse said government privileges. If a small local job can demand a drug test to be hired as an employee to make money, a big government can demand a drug test to ensure it's money is being spent accordingly.