Czech billionaire Daniel Kretinsky is closing in on buying the French supermarket chain Casino, paving the way for a foreign rescue. Casino's board on Monday approved moving forward with talks aboutKretinsky's attempt to take over France's sixth biggest retailer, which is laden with debt and teetering on the edge of bankruptcy. The French government has not voiced opposition to the bid by the foreign businessman, though is reportedly concerned about possible job cuts. Casino employed some 50, 00