September 11.
D000401:Aircraft; D004219:District of Columbia; D004739:England; D006801:Humans; D007857:Leadership; D009519:New York City; D010554:Personality Disorders / Q000175:diagnosis / Q000523:psychology; D011209:Power, Psychological; D011599:Psychopathology; D012069:Religion and Psychology; D013405:Suicide / Q000523:psychology*; D023481:Terrorism / Q000523:psychology*