A U.S. Senate panel today heard feedback on Senator Claire McCaskill's bipartisan plan to protect Missouri consumers and American jobs from a European Union environmental tax on the U.S. airline industry. McCaskill used today's hearing in the Senate Commerce Committee to tell an Administration official and two environmental groups that she would not allow the European Union (E.U.) to force Missourians to pay carbon taxes on international flights. Today's hearing focused on a E.U. proposal that applies a 'cap-and-trade' carbon tax system to all flights originating or landing in Europe-taxing even those emissions that occur over international waters and outside Europe.