An Iranian semiofficial news agency says a parliamentary committee has approved a bill requiring the government to design nuclear-powered merchant ships and provide them with nuclear fuel. Iran says it is designing a nuclear submarine. But nuclear-powered ships other than warships are rare and the International Atomic Energy Agency has said in the past that such merchant ships would be uneconomical. The bill appears to be a symbolic gesture to bolster Tehran\'s argument that it has a right to enrich uranium for peaceful purposes. The West says Iran\'s nuclear program is aimed at developing weapons technology, a charge Tehran denies. Lawmaker Mohammad Bayatian is quoted by the semi-official Mehr news agency as saying today that the bill will be debated in the parliament next week.