"According to Weinstein, the US Treasury's moves meant 'we had to fly the movie to another country'- he would not say to where. 'Let the secret service find that out - though this is the same country that thought there were weapons of mass destruction, so they'll never find it.' He added that he feared that if the film were impounded, there might be attempts to cut some footage, in particular the last 20 minutes, which related to a trip to Cuba. This, said Weinstein, 'would not be good.'
In March, Moore travelled to the Caribbean island with a group of emergency workers from New York's Ground Zero to see whether they would receive better care under the Castro regime than they had under George Bush. He had applied for permission to travel in October 2006 and received no reply.
In a letter dated May 2, the treasury department notified Moore that it was investigating him for unlicensed travel to Cuba, or, as the missive put it, engaging in 'travel-related transactions involving Cuba'."