http://www.dw-world.de/dw/article/0,,1745078,00.html?maca=en-rss_english_top-388-rdf
"'Next year we will have over three million visitors, among them scores of well-known public personalities from all over the world,' Konrad Freiberg said at a police security forum in Gelsenkirchen, one of the 12 host cities at the tournament. 'They will spend long periods of time at previously known places. That makes this big event an attractive target for terrorists.'"