Twenty Muslim-Americans were indicted for violent terrorist plots in 2011, down from 26 the year before, bringing the total since 9/11 to 193, or just under 20 per year (see Figure 1). This number is not negligible – small numbers of Muslim-Americans continue to radicalize each year and plot violence.
However, the rate of radicalization is far less than many feared in the aftermath of 9/11. In early 2003, for example, Robert Mueller, director of the Federal Bureau of Investigation, told Congress that "FBI investigations have revealed militant Islamics [sic] in the US. We strongly suspect that several hundred of these extremists are linked to al-Qaeda."1 Fortunately, we have not seen violence on this scale. (More)