In a message dated 11/29/2009 11:43:01 AM Pacific Standard Time, fredbaud@fairpoint.net writes:

We don't block incarcerated prisoners. Prisons do that, to protect themselves and the public. Prisoners know how to do online fraud, and are good at it.>>

*Some* prisons do it, some do the exact opposite.

http://www.google.com/search?q=internet+access+prison&ie=utf-8&oe=ut... aq=t&rls=org.mozilla:en-US:official