Reuters has more on the Tokyo Metro's response to yesterday's London terror attacks:
The Tokyo Metro subway system said it was increasing patrols of its stations and had removed all garbage cans as a precaution.This post is the sixth in a series about the inconveniences and risks of commuting by train in Japan; previous entries are here: 1, 2, 3, 4, 5. I hope the current situation never yields a candidate for Part VII.
...Japan is especially worried about its transport system, used by hordes of workers who pour into Tokyo from surrounding suburbs each day.
More than 590 million commuters passed through Shinjuku Station, Tokyo's busiest, in 2000 roughly 1.6 million a day.
But security experts said that, try as Japan might, it was impossible to protect against every eventuality, noting that legal limits on surveillance activities made gathering detailed intelligence more difficult than in some other countries.
"Japan has sent its military to Iraq, the same as England and as Spain, which were both hit, so there's certainly a motive," said Jun Yamazaki, Japan unit president of risk consultancy Control Risks Group.
"But the only way to prevent absolutely everything would be to become a police state."
AFP has more on how subways are fast becoming the preferred target of terrorists.