Killing Hitler (2003 TV Movie)
Kate Ashfield: Rachel
[talking about the ethics of killing a head of state]
Rachel : I think we *should* look into the possibility of using a sniper. You know there's rumour that in 1938 the British attaché in Berlin suggested that.
L/BX : Why wasn't it taken up?
Rachel : You can't just kill someone because of what they might do in the future. Assassination's hard to justify when you're not at war - it's generally called "murder".