MF Global's missing money mystery has taken a twist after a bankruptcy trustee said the figure is double what the firm reported to regulators. James Giddens said up to $1.2 billion is missing from customer accounts at the broker, which filed for bankruptcy protection three weeks ago. He said his plans to release $520million from accounts that have been frozen will mean nearly all the assets under his control will be distributed. Court-appointed trustee Mr Giddens has been going through the accounts and finances of MF Global since it filed for bankruptcy protection. But an investigation source told the New...