http://i3xi5qxvbrngh3g6o7czwjfxwjzigook7zxzjmgwg5b7xnjcn5hzciad.onion/proposals/125-bridges.html
Right now if we put up a second bridge authority, all the bridges would
publish to it, and (assuming the code works) bridge users would query
a random bridge authority. This resolves the robustness bottleneck,
but makes the trust bottleneck even worse.
In 0.2.2.x and later we should think about better ways to have multiple
bridge authorities.
3.