When we tell the world, “Yes, we are a country that will even tolerate a mosque near the site of 9/11,” we send such a powerful message of inclusion and openness. It is shocking to other nations. But you never know who out there is hearing that message and saying: “What a remarkable country! I want to live in that melting pot, even if I have to build a boat from milk cartons to get there.” As long as that happens, Silicon Valley will be Silicon Valley, Hollywood will be Hollywood, Broadway will be Broadway, and America, if we ever get our politics and schools fixed, will be O.K.