According to this article from UPI, Michael Moore has been served a subpoena to appear in court because of the trip he took to Cuba.
BURBANK, Calif., July 26 (UPI) — Michael Thursday said the Bush administration has served him with a subpoena regarding his trip to Cuba during the making of his new film, “Sicko.”
The Oscar-winning filmmaker, who appeared Thursday on NBC’s “The Tonight Show with Jay Leno,” said he was notified about the subpoena at the network’s studios in Burbank, Calif.
“I haven’t even told my own family yet,” Moore said. “I was just informed when I was back there with Jay that the Bush administration has now issued a subpoena for me.” [full text]