Popeye the Sailor Man would have approved of the green, leafy spinach gobbled up by Sadex Corp. officials early Wednesday morning. Popeye definitely would not have approved of the spinach if he could have seen it under a microscope before it underwent irradiation -- the spinach contained 5 million colonies of E.coli bacteria per gram. "You would have been better off to have a cow come and dump on it," said David Corbin, chairman and chief executive officer of the Sadex Corp. Officials at the Sadex Corp. irradiated the highly contaminated spinach at the Sioux City plant, 2650 Murray St....