In advance of a hearing on the 2020 Census, EPIC told Congress to consider the privacy issues arising from potential misuse of Census data. After the Department of Commerce announced that the 2020 Census will include a question on citizenship status, many have expressed concerns about the confidentiality of the data collected. EPIC told Representatives: "your committee should ensure that the data collected by the federal government is not misused." The census raises significant privacy risks and has been used to discriminate. EPIC previously obtained documents which revealed that the Census Bureau transferred the personal data of Muslim Americans to the Department of Homeland Security after 9-11. As a consequence, the Census Bureau revised its policy on disclosing statistical information about "sensitive populations" to law enforcement or intelligence agencies. Customs and Border Protection also changed its policy on requesting "information of a sensitive nature from the Census Bureau."