The American Civil Liberties Union has filed a lawsuit on behalf of a mentally ill North Carolina man who was wrongly deported to Mexico even though he was a US citizen who spoke no Spanish, had never been to Mexico and had no Mexican heritage. Following his deportation, the man, Mark Lyttle, ended up spending four months living on the streets and in the shelters and prisons of Mexico, Honduras, Nicaragua and Guatemala. Lawyers say Lyttle is one of many mentally ill Americans that have been swept up in the US immigration detention system.