CARSON CITY, Nev. - Reuben Law, 105, credits good heart genes and lifelong outdoor activity for his apparent status as Nevada's last remaining veteran of World War I. At 102, Frank Buckles still works the fields and drives a tractor at his family farm near Charles Town, W.Va. The two are among fewer than 200 surviving U.S. veterans of the Great War out of 4.7 million who served. AP Photo "I'm pretty rickety, but I still get along," Law said at his Carson City home as he reminisced about his stint as an Army sergeant, hauling supplies or transporting soldiers...