On 21 Feb 2007 10:00:33 -0800, "Mizter T" wrote:

snip

If you want to read about a Metro system that quite possibly does have
a secret line, as well as a supposed dual-purpose so it serves as a
link between military facilities, take a look at this unofficial site
about the Pyongyang Metro:
http://www.pyongyang-metro.com/index.html

Hasn't the Moscow Metro got a few "unadvertised" sidings in the
vicinity of various government buildings ?