Full Idea
Forming the intention to use nuclear retaliation if attacked may both be the best way to avoid the catastrophe of nuclear war and at the same time be morally corrupting.
Gist of Idea
Aggression in defence may be beneficial but morally corrupting
Source
Jonathan Glover (Introductions to Utilitarianism and its Critics [1990], Pt Five)
Book Reference
'Utilitarianism and Its Critics', ed/tr. Glover,Jonathan [Macmillan 1990], p.154