Facebook's new "graph" search is potentially very, very dangerous
Facebook Graph is their new search engine that lets users search across all of Facebook with a very fine granularity. Combine this with the extremely poor way FB implements privacy and you have a powderkeg waiting to blow.
Like this search below of Muslims in Tehran who are gay. Which is punishable by death in Tehran.
Or the search for Chinese people who like Falun Gong, which is also basically a death sentence in China.