Carnival revellers pose with police officer during Rose Monday carnival parade in Duesseldorf

Carnival revellers pose with a police officer during the traditional Rose Monday carnival parade in the western German city of Duesseldorf February 16, 2015. A carnival parade in the northern German town of Braunschweig planned for Sunday lunchtime was cancelled at short notice due to a concrete threat of an Islamist attack, police said. The Rose Monday parades in Cologne, Mainz and Duesseldorf are the highlight of the German street carnival season. REUTERS/Wolfgang Rattay (GERMANY – Tags: SOCIETY CRIME LAW)