Tired of the long trip to your vacation home? What if you could get an airline to create a direct flight for you? Sounds good, until you're convicted of a federal crime. David Samson, chairman of the Port Authority of New York and New Jersey, pleaded guilty to a federal bribery charge, admitting that he used his power to get United Airlines to initiate a money-losing flight from Newark to an airport near his vacation home in South Carolina. Samson, a Christie appointee, is to be sentenced Thursday. Also charged in the case was Jamie Fox, a former United lobbyist who has pleaded not guilty to conspiring to commit bribery. Fox, a longtime Democratic operative, served as Christie's transportation commissioner.