Japan's speedy, spotless Shinkansen bullet trains turn 60

Japan's iconic Shinkansen bullet trains turn 60 on October 1. High-speed Shinkansen trains began running between Tokyo and Osaka in 1964, heralding a new era for rail travel as Japan grew into an economic superpower after its World War II defeat.

The service remains integral to the nation's economy and way of life -- so keeping it dazzlingly clean, punctual and accident-free is a serious job.