An elderly man was arrested Friday on suspicion of starting a fire on a shinkansen bullet train in the western prefecture of Okayama, police said.The 80-year-old man, who identified himself as Yasuhiro Watanabe from Kobe, Hyogo Prefecture, was arrested at JR Okayama Station, they said, adding he has admitted to the charge.Watanabe was sitting in a window seat in the front car of an eight-car train bound for Kagoshima-Chuo Station in southwestern Japan when he set fire to papers on a seat with a lighter just before the train was due to stop at Okayama.Passengers nearby put the fire out, the …READ FULL ARTICLE