Online gambling has become a very big business, and the laws governing it vary from country to country. In the U.S., a federal investigation revealed that illegal gambling activity had been taking place on websites that offer gambling to US citizens. Fortunately, this does not mean that gambling is illegal everywhere, but rather that certain practices are prohibited.
For example, if an American citizen wishes to place a bet on a sporting event, he or she must be able to do so in that state. In the United States, gambling laws are primarily determined by state law. However, federal law reinforces state law when there are interstate or foreign elements involved. In some cases, state officials have expressed concerns that Internet gambling could be used to bring illegal gambling activities to their state.