In the past there were various suggestions in the framework of financial and other agreements to benefit with Iran. But Iran interpreted those suggestions in a mistaken way and deceived the international community.
What then is tragedy? In the Elizabethan period it was assumed that a play ending in death was a tragedy, but in recent years we have come to understand that to live on is sometimes far more tragic than death.
This coupling together of science with international peace, is, I think, particularly significant.

