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The US is reported to be greatly expanding the scope of its naval blockade of Iran, asserting the right to board and seize any ships it believes to be carrying “contraband” or “conditional contraband” bound for Iran from anywhere on the open seas. Respected maritime news and intelligence agency, Lloyd’s List, says this means that “almost any industrial cargo bound for Iran could plausibly be intercepted”. This will considerably raise the stakes in an already fraught situation.