Following up on yesterday’s post, the recall of half a billion Iowa-produced eggs continues to reverberate in Iowa politics.

Republican Secretary of Agriculture Bill Northey still denies that he could have done more to ensure food safety regulations were followed at the DeCoster facilities. Northey’s opponent, Francis Thicke, has said feed mill inspections “could have identified a strain of Salmonella Enteritidis before 1,470 Americans were sickened and a half billion eggs were recalled.”

Meanwhile, the non-profit Food Democracy Now announced that two major supermarket chains have agreed to stop selling eggs produced by Jack DeCoster’s operations.

Details and more links are after the jump.