Adam Lanza in Newtown, Connecticut, or James Holmes in Aurora, Colorado, are not viewed as part of a “suspicious” religious or ethnic group. Even when non-Muslim white men launch explicitly terrorist attacks – for example, Oklahoma City bomber Timothy McVeigh, who murdered 168 people in 1995, or the “Unabomber” Theodore Kaczynski – their offenses are typically regarded as isolated law-enforcement issues, not as terrorism.