Some citizens, meanwhile, have turned to the courts when they feel their elected officials are not addressing certain issues quickly or strongly enough. For instance, in the 1990s, individuals, and eventually government itself, sued tobacco companies over the health risks of cigarette smoking. A large financial settlement provided states with long-term payments to cover medical costs to treat smoking-related illnesses. Direct Services. Each level of government provides many direct services. The federal government, for example, is responsible for national defense, backs research that often leads to the development of new products, conducts space exploration, and runs numerous programs designed to help workers develop workplace skills and find jobs. Government spending has a significant effect on local and regional economies -- and even on the overall pace of economic activity. State governments, meanwhile, are responsible for the construction and maintenance of most highways. State, county, or city governments play the leading role in financing and operating public schools. Local governments are primarily responsible for police and fire protection. Government spending in each of these areas can also affect local and regional economies, although federal decisions generally have the greatest economic impact. Overall, federal, state, and local spending accounted for almost 18 percent of gross domestic product in 1997. Direct Assistance. Government also provides many kinds of help to businesses and individuals. It offers low-interest loans and technical assistance to small businesses, and it provides loans to help students attend college. 13