Today, the Electronic Frontier Foundation and Asian Law Caucus, two civil liberties groups in San Francisco, plan to file a lawsuit to force the government to disclose its policies on border searches, including which rules govern the seizing and copying of the contents of electronic devices. They also want to know the boundaries for asking travelers about their political views, religious practices and other activities potentially protected by the First Amendment. The question of whether border agents have a right to search electronic devices at all without suspicion of a crime is already under review in the federal courts.

The lawsuit was inspired by two dozen cases, 15 of which involved searches of cellphones, laptops, MP3 players and other electronics. Almost all involved travelers of Muslim, Middle Eastern or South Asian background, many of whom, including Mango and the tech engineer, said they are concerned they were singled out because of racial or religious profiling.