See http://tahoebs1.allmydata.com:8123/file/URI%3ACHK%3Ayhw67uwzcdszqtzim6zxmiqzte%3A323pu5fz27sbntnxgffa57eqisabggvdnmq3zqoqyckgkimgmfma%3A3%3A10%3A3448/@@named=/peer-selection-tahoe2.txt