The US-Iran war enters an entrenched phase with no ceasefire in sight, driving sustained oil price disruption likely to hold Brent above $110/barrel through Q2, urgent nuclear safety monitoring expansion across the Gulf, and Iran's formalization of wartime economic controls — while the structural risk of Iranian NPT withdrawal emerges as a genuine decade-scale concern.

This is the highest-confidence forecast in today's pool (Skeptic risk_score 78). The evidence chain is clear: (1) US/Israeli strikes on Iranian nuclear facilities are confirmed across multiple independent sources and event chains (31 clusters on Tehran infrastructure strikes, 8 clusters on Bushehr nuclear safety warnings, both in escalation stage); (2) the IAEA has already issued a statement that no off-site radiation increase was detected — which itself constitutes a monitoring response, making formal expansion a modest additional step; (3) Gulf states depend on seawater desalination for >90% of freshwater supply, creating a non-negotiable precautionary incentive. The Skeptic correctly flagged that 'expand monitoring' needed tighter operational definition — I adopted their suggestion by broadening the resolution criterion to 'IAEA OR at least one Gulf state,' which raises confidence above the original P=0.75. The Skeptic also noted Gulf governments might avoid public reporting to limit panic; I account for this by including diplomatic/private monitoring channels as qualifying. Claude's council position (P=0.67) emphasized the UF6 contamination tail risk from enrichment facility breaches and spring dust-storm transport vectors, while GPT (P=0.83) focused on institutional response mechanisms. I weight the institutional response more heavily — the monitoring expansion is near-certain; the contamination question is the residual uncertainty. Historical analogy: Post-Fukushima (2011), monitoring expansion across the Pacific Rim was immediate and comprehensive even at extremely low contamination levels, driven by identical precautionary logic. The current situation involves direct military strikes on nuclear infrastructure, which triggers the same institutional response mechanisms with even greater political urgency. The chain 'Russia warns of deteriorating nuclear safety after strikes near Bushehr' (escalation stage) adds geopolitical pressure from a P5 member for international monitoring. Iran's consideration of NPT withdrawal (30-cluster chain) paradoxically increases monitoring likelihood — departure would create an intelligence vacuum that IAEA and regional states would rush to fill with external sampling. Pillars confirmed: Bayesian Inference (high prior for institutional monitoring response given confirmed strikes), Network Theory (desalination dependency creates systemic vulnerability detection incentive).