Japan's summer holiday travel rush got underway Saturday, with many shinkansen bullet train services and flights fully booked as people returned to their hometowns or set off on domestic and overseas vacations.JR Tokyo Station was crowded from the early morning as all seats on the Nozomi shinkansen bullet train services to the major metropolises of Nagoya, Osaka and Fukuoka were booked out, with long lines of passengers seeking unreserved seats on other trains.Traffic jams snaked along the country's expressways, while travelers at train stations crowded concourses and waiting rooms to shelt…READ FULL ARTICLE