WASHINGTON/berlin, April 26 -- Donald Trump says the US Navy is clearing Iranian mines from the Strait of Hormuz, a vital sea route for oil shipments whose disruption is increasingly threatening the global economy, AP reported. Sweeping for underwater explosives could take months despite a ceasefire between the US and Iran, experts say. Any future claims that the US cleared the waterway where 20% of the world's oil typically passes might fail to convince commercial freighters and their insurers that it is finally safe. "You don't even have to have lain mines - you just have to make people believe that you've laid mines," said Emma Salisbury, a scholar at the Foreign Policy Research Institute's National Security Program. "And even if the US ...