IIUSA Sends Congress Letter of Support for EB-5 Reauthorization – More than 875 organizations have signed IIUSA’s ““EB-5 is Working” letter in support of reauthorizing the EB-5 investor immigration program. Further support for the program has come from the President of the U.S. Chamber of Commerce, while experts expect the program to get short-term re-authorization pending eventual overhaul.