http://www.forbes.com/feeds/ap/2011/...l_8675196.html
So this guy can't fly due to being on the no fly list and as a dual US Italian citizen wants to return to Italy. He takes a ocean liner to england and is taken off ship before the cruise ship arrives in england as he was on the no fly list.
This seems crazy if you can't leave the country. Does this apply to trains as well? Seems like it would be an issue even if you are trying to go from Hawaii to the CONUS.