Florida's BankUnited went bust yesterday as the FDIC seized the critically undercapitalized bank and sold it off to a private-equity team including Blackstone, reports the Wall Street Journal. BankUnited's troubles stemmed from overeager moves in the housing market. It specialized in loans for foreigners wanting to buy Florida property. After Indymac, BankUnited is the largest bank failure since the start of the financial crisis. The already weakened FDIC reckons the bust will cost it $4.9 billion.