Iran pulled the plug on the entire 60-day negotiation period before the delegation even left for Switzerland. Why: Israel attacked southern Lebanon less than 24 hours after the MOU was signed, directly violating the first clause. The US supposedly guaranteed Israel wouldn't escalate while talks happened. Iran's position is clear: no unilateral moves, no talks, nothing until Israeli attacks stop and the US actually enforces what it promised. They're not pretending anymore that diplomatic theater means anything when the other side keeps swinging.