Moore brought men and women who had assisted in the clean-up of lower Manhattan following the September 11th terrorist attacks to the Communist nation to receive medical treatment for the ailments they have developed over the past five years, for which they have not received adequate medical care in America.
Cuba is under a trade embargo from the U.S. and a majority of Americans are not allowed to visit the island.
Moore's lawyer, David Boies, yesterday released a letter that he has sent to the Office of Foreign Assets Control.
It reads: "I am concerned that Mr. Moore has been selected for discriminatory treatment by your office.
"This is an attempt by the government to discriminate against a journalist based on the content of Michael Moore's journalistic work."
Sicko is due for release later this month.
COPYRIGHT 2007 WORLD ENTERTAINMENT NEWS NETWORK LTD. All Global Rights Reserved.