Washington should have to pay for the damage caused by decades of unilateral sanctions, a senior official has said The US owes Iran a trillion dollars for the decades of economic sanctions, a senior official in Tehran has said, while accusing Washington of supporting terrorism. In a speech on Saturday, Ali Shamkhani, who serves as the secretary of Iran’s Supreme National Security Council, accused the US-led West – which he called the “Arrogant Front” – of trying “to use different tricks in the