Slashdot Mirror
Japanese Police Urge ISPs To Block Tor
hypnosec writes "Authorities in Japan are presumably worried about their inability to tackle cybercrime and, in a bid to stem one of the sources of anonymous traffic, the National Police Agency (NPA) is asking ISPs to block Tor. The recommendation comes from the special panel formed by the NPA after a hacker going by the name Demon Killer was found to regularly use Tor to anonymize his online activities, like posting of death threats on public message boards."
Well, the referred wikipedia article says a different story:
In murder, U.S. police arrested 19,000 people for 26,000 murders, in which 75% were prosecuted and courts convicted 12,000 people. In Japan, 1,800 people were arrested for 1,300 murders, but prosecutors tried only 43%. Had the allegation that Japanese prosecutors use weak evidence mostly based on (forced) confessions to achieve convictions been true, the larger proportion of arrests would have resulted in prosecutions and eventual conviction. But the opposite is true. In fact, the data indicates that Japanese prosecutors bring charges only when the evidence is overwhelming and likelihood of conviction is near absolute, which gives a greater incentive for the accused to confess and aim for a lighter sentence, which, in turn, results in a high rate for confession.
They can still block any traffic from the exit nodes. All the ISPs in Japan can null route all traffic from Tor exit node IP addresses. The list of addresses is published by Tor so people can do just this (it's not meant for the ISP level, rather, they publish it so people can block Tor from message boards and such). This would prevent all Tor traffic from entering Japan's networks directly
Using a proxy immediately after Tor would be the only solution to this, but even this could be blocked since lists of public open proxies are maintained in a number of locations such as XRoxy.