Letters

摘要

Sir - Post-traumatic stress disorder is devastating for many soldiers, and we welcome any therapy that can help them. However, a virtual "vaccination" against the trauma of war raises worrying issues ("Battle ready?", November 17th). The deliberate suppression of a natural emotional response may have profound and unknown effects on individuals. War is a form of social interaction; it is and should remain a most unpleasant one. Changing soldiers' behaviour will influence society more generally. Yves Daccord, the director-general of the Red Cross, recently highlighted how the technological transformation of war into a remote, virtual activity carries big risks for humanity.