GREENSBURG, Kan. - In an area of southwest Kansas long known for its meteorite finds, Steve Arnold came up with what may be the biggest of its kind ever found in the United States. Arnold, a professional meteorite hunter from Kingston, Ark., found the 1,400-pound space rock two weeks ago in Kiowa County's Brenham Township. Using a metal detector mounted on a three-wheel vehicle, he discovered it more than 7 feet underground and dug it up. It was in the same area that in 1949 produced a 1,000-pound meteorite now on display at the Celestial Museum in Greensburg, part of...