september 16, 2005 [...] Twice a year, the government of
Taiwan holds air-raid drills around the country, to pre-
pare the population psychologically for the possibility of
an military attack by China.
I don’t know if China holds similar air-raid drills (I
suspect not), but here in Taiwan, twice a year, trafffic in
all major cities is stopped, no cars or trucks or taxis or
buses are allowed to move for 30 minutes in mid-after-
noon, usually from 2:30 pm to 3 pm, and big department
stores must lock their doors and keep customers inside in
basement levels.
In schools, as the photo shows, students sit on the floor
of a classroom and place bookbags over their heads. [...]

http://japundit.com/archives/2005/09/16/1200/