I've just found this forum post: http://blogama.org/node/87 http://blogama.org/node/87 The claim is 99.5% accuracy. Whether that is reproducible and whether i

I've just found this forum post: http://blogama.org/node/87 http://blogama.org/node/87 The claim is 99.5% accuracy. Whether that is reproducible and whether it holds outside the US is unknown.