Members of Poland's Antiterrorist Police Force, in conjunction with the Elite Special Forces Unit, GROM and Railroad Defence Guard, take part in an exercise involving a hostage rescue situation on a train, in Northern Poland December 2, 2011. Poland is investing heavily in security for next year's European football championship despite downgrading the number of visitors it expects. Commandoes have been simulating a multiple hostage situation in case criminals target the world's second largest football tournament, which is being co-hosted with Ukraine next June. Picture taken December 2, 2011. REUTERS/Peter Andrews (POLAND - Tags: MILITARY SPORT SOCCER) (EURO 2012-SECURITY)