File picture shows workers as they polish a prototype of the new maglev Transrapid high-speed train at the ThyssenKrupp plant in the central German city of Kassel March 23, 2007. A planned high-speed rail link between the Bavarian capital Munich and its airport will probably not be built because of a cost overrun, a source in Germany's ruling coalition said on March 27, 2008. Picture taken March 23, 2007. REUTERS/Alex Grimm/File (GERMANY)