SAN FRANCISCO - Monsanto Co.'s "seed police" snared soy farmer Homan McFarling in 1999, and the company is demanding he pay it hundreds of thousands of dollars for alleged technology piracy. McFarling's sin? He saved seed from one harvest and replanted it the following season, a revered and ancient agricultural practice. "My daddy saved seed. I saved seed," said McFarling, 62, who still grows soy on the 5,000 acre family farm in Shannon, Miss. and is fighting the agribusiness giant in court. Saving Monsanto's seeds, genetically engineered to kill bugs and resist weed sprays, violates provisions of the company's contracts...