...Let's make no mistake about this: We have a crucial national-security interest in the outcome of that struggle. We need the moderates to win. And here, when I speak of moderates, I am not talking about those who merely pay lip service to moderation. I am not talking about those who take advantage of America's benign traditions and our reluctance to examine the religious practices of others. I am not talking about those who use that blind eye we turn as an opportunity to be apologists, enablers, and supporters of terrorists.

I am talking about authentic moderates: millions of Muslims who want an enlightened, tolerant, and engaged Islam for today's world. Those people need our help in the worst way. They are losing the battles for their communities. The militants may not be a majority, but they are a vocal, aggressive minority — and they are not nearly as much of a small fringe as we'd like to believe.

As an assistant U.S. attorney, time and time again I heard it over the last decade, from ordinary Muslims we reached out to for help — people we wanted to hire as Arabic translators, or who were potential witnesses, or who were simply in a position to provide helpful information. People who were as far from being terrorists as you could possibly be. "I'd like to help the government," they would say, "but I can't." And it was not so much about their safety — although there was, no doubt, some of that going on. It was about ostracism.

Repeatedly they'd tell us that the militant factions dominated their communities. These elements were usually not the most numerous, but they were the most vocal, the best networked, the best funded, and the most intimidating. Consequently, people whose patriotic instinct was to be helpful could not overcome the fear that they and their families could be blackballed if it became known that they had helped the United States prosecute Muslim terrorists. The militants had the kind of suasion that could turn whole communities into captive audiences...