Iran has just entered strong and relaxed in the final stretch of its career in search of a few dozen nuclear warheads, and leads, many bodies away, the pack of greyhounds that pursue it. The economic sanctions will not stop the Iranians for a single day to obtain them, even if people are starving on the streets. Sanctions will only victimize the immense humble class, which will resist them with resignation and too much pain, but without uttering a word against the mullah-princes and their all-powerful army, the deeply indoctrinated IRGC.
To prevent so much distress and yet worse things, the goal of peace must be in the minds of the US and UK negotiators above any other consideration, because the time to act positively is right now.
In order to fulfill the primordial objective of a fast and lasting peace, it is necessary to find new ideas and new channels of communication, since the old ones became difficult until they failed or closed. Now more than ever it is necessary to speak, but to do it has become impossible.