In a letter to U.S. Customs and Border Protection, CFA joins a coalition of human rights and civil liberties groups to convey concerns with the U.S. Department of Homeland Security's proposal that certain categories of visitors to the United States be asked to disclose information about their “online presence” in their visa-waiver arrival/departure records (Form I-94W) and their online application for an Electronic System for Travel Authorization (ESTA). This program would invade individual privacy and imperil freedom of expression while being ineffective and prohibitively expensive to implement and maintain.