Are they afraid they might start talking in elevators then rubble the corruption in their departments, or that the people going their for benefits may decide to get together & start a riot? Fucking idiots.
Hey, I could understand if it read something like, Please keep your voice down, but SILENCE?

http://mdn.mainichi-msn.co.jp/national/news/20070303p2a00m0na029000c.html