Top Bitcoin exchange faces $75 million lawsuit as international partnership reportedly breaks down

This past February, the largest Bitcoin exchange, Mt. Gox, announced a partnership with an American company called CoinLab. The goal of the partnership was to give Mt. Gox access to US customers through CoinLab, as the company is strongest in Japan. It also served to help Mt. Gox navigate new regulation guidelines the US government has proposed for Bitcoin transactions. In all, it looked like it could have been a win-win -- but as Gawker reports, that doesn't appear to be the case. CoinLab has f...