The United States Postal Service (USPS), which historically operated as a government-supported monopoly, was mandated by Congress in 1970 to breakeven and taxpayer subsidies were eliminated. After becoming self-sufficient in the early 1980s, USPS has become more commercial and revenue-oriented. Today, USPS has more stakeholders than most organizations, touching every business and household in the US, and until recent years, was the largest employer in the country, currently employing 700,000 people (including carriers). USPS provides products and services in several different markets: correspondence and transactions, business advertising, expedited delivery, standard package delivery, publications delivery, and international mail. Even the smallest of USPS’ lines of business is a billion-dollar business.