'Rational Americans and experienced U.S. commanders' are likely to rein in Washington's 'radical elements' and prevent a war with Iran, the country's semi-official news agency Mehr reported on Saturday, quoting a senior military commander. 'We believe rational Americans and their experienced commanders will not let their radical elements lead them into a situation from which it would be very difficult to get out, and that is why they will not enter a war,' Brigadier General Hassan Seifi, an assistant to Iran's army chief, told Mehr.