ISP/VPN's to China?

[chris at eng.gla.ac.uk (Chris Edwards)]

On Wed, 21 Oct 2009, Alex Balashov wrote:

| I was not aware that tools or techniques to do this are widespread or highly
| functional in a way that would get them adopted in an Internet access control
| application of a national scope.

Doesn't necessarily have to be hugely accurate.  The authorities could 
simply identify a few likely suspect tunnels, then knock-on-doors and ask 
you to explain what the traffic in question is...