The Treasury Department quickly grew in stature and personnel, encompassing the United States Customs Service, the United States Revenue Cutter Service, and the network of Treasury agents that Hamilton had foreseen. Hamilton immediately followed up his success with the "Second Report on Public Credit", which contained his plan for the Bank of the United States, a national privately-operated bank endowed with public funds that became the forerunner of the Federal Reserve System. In 1791 Hamilton released a third report, the "Report on Manufactures", which encouraged the growth and protection of manufacturing.