[Dr. Ursus]

The reason they hire young ATC is that they still rely on
them to separate air traffic rather then monitor a satellite
based system. They need them young to get years of work
before work and age takes their toll.

[TheCipher]

Here is a site that is interesting to listen to. It is live ATC feeds. Some of the real interesting stuff is in the captured recordings area:

http://www.liveatc.net/