For days the United Nations has been in (so far unsuccessful) talks on cobbling together an agreement on plans to unblock Black Sea grain exports from Ukrainian ports, including controversial discussions with Russia, which has stood accused of ‘weaponizing’ global food supply with its military blockade of key ports. Moscow has in turn charged that Ukraine said ports, making tanker traffic impossible, while also saying the West must ease sanctions if it hopes to get crucial grain exports flowing again. UN officials have said President Vladimir Putin’s offer to lift the blockade if sanctions are dropped is “complicating” the already...