Iran has issued a blunt warning to the US, threatening to sink US ships and paralyse the country if attacked. A senior official said any strike would trigger a "head for an eye" response, if US strikes on Iranian infrastructure. Days after Donald Trump halted strikes on Iran’s energy infrastructure for 5 days after "good and productive" talks, Tehran's ex-chief commander of the Revolutionary Guards (IRGC), Mohsen Rezaei, issued an "eye for a head" warning to the US President... [2016 chars]