MADRID (Reuters) - Spanish police arrested two men and seized the contents of a truck bound for Iran loaded with materials destined for use in the Islamic state's nuclear program, the Interior Ministry said on Friday. The truck, intercepted on a motorway in northern Spain early on Wednesday, was carrying highly corrosion-resistant valves, the ministry said in a statement. Police were examining computer databases and documents at Fluval Spain, the company where the two arrested men worked, a ministry spokesman said. ...