Governments are continually searching for additional funds to pay for the needs of their citizens, businesses, and bureaucrats. At the local level, taxes support spending for schools roads, libraries, athletic facilities, fire and police services, and the salaries of county and municipal employees. States collect taxes for highway construction and upkeep, public colleges, buildings, and law enforcement. The federal government levies taxes in order to provide its citizens with an interstate highway system, a capable military force, health services, an Internal Revenue Service, thousands of parks and monuments, and scores of other things.