Communicating about the risks of terrorism (or anything else).

Communication is essential to preventing terrorists from achieving their objectives. Effective communication can reduce terrorists' chances of mounting successful operations, creating threats that disrupt everyday life, and undermining the legitimacy of the societies that they attack. Psychological research has essential roles to play in that communication, identifying the public's information needs, designing responsive communications, and evaluating their success. Fulfilling those roles requires policies that treat two-way communication with the public as central to ensuring that a society is strengthened, rather than weakened, by its struggle with terror. There are scientific, organizational, and political barriers to achieving those goals. Psychological research can help to overcome them-and advance its science in the process.