OPIC is a federal agency that helps U.S. companies invest in developing overseas markets. OPIC chooses from among plans submitted by companies and private investors and finances $3 billion worth of opportunities that don't exist in the regular marketplace, such as providing insurance against political risks or loans for risky, long-term projects. OPIC matches its "private" funds 2-to-1 and often insures the investments against loss. The funds generate a huge profit for OPIC -- $209 million last year -- and their lucky investors. But these private funds like to remain just that -- private.