Last week ftx, the second-largest crypto-exchange, ran out of cash. It is the biggest cryptocurrency disaster yet. Investors wanted to know what they did wrong. Now we have the answer: almost everything. The result is a scandal so big it goes far beyond those just interested in bitcoin. It links to corruption at the highest levels and may have even played a major role in the United States midterm elections. The media, financial authorities and the Democratic Party are all implicated. ftx allowed people to easily trade cryptocurrency. Set up an account, and you could buy, sell and save bitcoin...