(MNN) Senator Amy Klobuchar has introduced a bill that would raise food safety and enforcement standards for commercial foods for babies and toddlers. She says it would allow the FDA to enforce scientifically-established limits on heavy metals found in these foods — such as lead, arsenic, cadmium and mercury — plus increase standards for food manufacturer sampling, and testing for other contaminants in imported and domestic processed foods. This comes after Klobuchar called on the U-S Justice Department in February to investigate potential criminal conduct for certain brands of cinnamon applesauce food pouches that contained high levels of lead, later found in babies’ bloodstreams.