For more than a decade, Berlin has been governed by an openly homosexual mayor. But is the city, renowned for its tolerance, ready for a leader from a Palestinian background? It may have to be. […] … Berlin SPD parliamentary leader Raed Saleh only needs to open his mouth to stand out from the crowd. Saleh came to Berlin at the age of five with his Palestinian parents, and although his German is beyond reproach, he speaks the language with a distinct Arabic twang. “Berlin is a city of diversity; a city of 100 different accents,” Saleh told DW. “People...