A worker drives his modified John Deere combine while harvesting corn on a farm in Mehdiabad village in Qazvin province, 91 Miles (165 Km) west of Tehran, Iran on November 11, 2007. Iranian farmers are involved in the production of a wide array of crops including wheat, rice, barley, corn, pistachio nuts, almonds, hazelnuts, and walnuts. (UPI Photo/Mohammad Kheirkhah)