Proposition 37 would require food producers, grocers and other retailers to label genetically engineered food sold in California. If they failed or refused, they could be taken to court. The Organic Consumers Fund, Nature's Path Foods and others have raised about $7 million to support Prop. 37. Opponents, including Monsanto, Dupont, DOW AgroSciences and brand-name food processors have raised $44 million against it. The measure that once led by a margin of 2 to 1 is now even or trailing in recent polls. KCRW producer Evan George talked to registered voters at a Vons supermarket in Echo Park and got a range of opinions.