No terrorizing any time
While other nations dither and fret about the danger of suitcase bombs, Japan's approach is more proactive: here, suitcase bombs are banned from the subways altogether!
And they aren't leaving any loopholes: this sign specifically forbids even "large quantities of matches." I imagine the dividing line is around a briefcaseful.
Russell:
Speaking of which, two things I noticed while in Japan last week that I didn't notice two years ago were (a) notices in train stations and various public buildings that hightened security measures were being taken, and (b) reminders on trains to report any suspicious-looking items to staff. It definitely made me feel at home.