I found this via Instapundit:
Some 20,000 people took to the streets in the western German city of Cologne on Sunday, waving German and Turkish flags, to protest against the use of violence in the name of Islam.The marchers had two starting points — a mosque and a cathedral — and converged in the middle of the city for the event organized by the Islamic-Turkish Union with the slogan “Hand in Hand for Peace and Against Terror.”
Sounds promising, but I won’t be entirely convinced until they add a synagogue to the list of starting points. After all, Jews are the most frequent targets of Islamic violence.