A visitor looks at an Israeli air force unmanned plane in the Tel Nof base, central Israel, Sunday, Feb. 21, 2010. Israel’s air force has introduced a fleet of large unmanned planes that it says can fly as far as Iran. Air force officials say the Heron TP drones have a wingspan of 86 feet (26 meters), making them the size of passenger jets, which can fly 20 consecutive hours, and are primarily used for surveillance and carrying payloads. (AP Photo/Ariel Schalit)
