Revellers attend the Christopher Street Day parade in Berlin June 25, 2011. Several thousand demonstrators took part in the annual CSD parade in the German capital to demonstrate for the rights of all lesbian, gay, bisexual, transgender and transsexual people and to commemorate clashes between gay people and U.S. police in New York City's Christopher Street in June 1969. REUTERS/Pawel Kopczynski (GERMANY - Tags: SOCIETY)