EDITOR—The central message of Walsh and Fahy's editorial—that the contribution to societal violence of mentally disordered persons is too small to justify the apparent preoccupation of politicians and the print and broadcast media—is correct, although it is becoming hackneyed after endless repetition.1 Despite this, an established association exists between mental disorder and violence that cannot be explained by cofactors.2 Even if there were no statistical association psychiatry would still have a role when they do …