USCIS Response to the Citizenship and Immigration Services Ombudsman's (CISOMB) 2015 Annual Report to Congress [open pdf - 6MB]
From the Introduction: "USCIS [U.S. Citizenship and Immigration Services] appreciates the review of the agency's operations and welcomes the opportunity to respond. This response provides updates to USCIS programs and the areas of concerns raised by CISOMB [Citizenship and Immigration Services Ombudsman], as well as the agency's accomplishments in those areas. As noted in the 2015 Annual Report, USCIS' primary focus has been the implementation of many of the immigration reforms announced by President Obama announcement on November 20, 2014. These steps will provide significant improvement to the legal immigration system."
U.S. Citizenship and Immigration Services: http://www.uscis.gov/