Fear is a powerful weapon. Its destructive force can be more devastating to a nation than a nuclear explosion. It is the primary tool of terrorists. After the attacks on Sept. 11, 2001, dozens of “patriotic” Americans carrying flags gathered in the Southland to march on a mosque in Bridgeview. More than 200 police officers were called to the scene to prevent violence. A man from Pakistan, who wasn’t even a Muslim, was bashed over the head in Chicago because “he looked like one of them.” A neighbor of mine, a woman who grew up in Palestine, suddenly disappeared. This...