Self-defence, as a justification for war, is much more difficult to argue if you strike the first blow. The Israelis say their devastating pre-emptive strike on Iran is a special, truly existential, case. A regime, long committed to their destruction was, according to Israel, within weeks of developing nuclear weapons, just one of which could effectively wipe out their state and most of its citizens.

Witnesses:

Panellists:

Presenter: Michael Buerk