The people vs. their food — the fight over Prop. 37 in California

On Nov. 6, California voters will say yea or nay to Proposition 37, which would require labeling for genetically modified or GM foods.

The issue, which became a ballot initiative after getting nearly a million petition signatures this past spring, appears to have wide popular support, according to polls. But it faces stiff opposition from pesticide makers like Monsanto, food companies, and dozens of California agricultural operations and business groups. Led by Monsanto, the opposition has collectively spent more than $34 million in advertising and public relations efforts opposing Prop. 37.