WASHINGTON (Agencies) US authorities issued a recall Friday for a brand of Pakistan-made candy called Toxic Waste Nuclear Sludge Chew Bars because it turns out the sweets actually are toxic. Tests showed that the cherry flavouring in the chew bars contained extremely high levels of lead - 0.24 parts per million when the US limit is 0.1. That potentially could cause health problems, particularly for infants, small children, and pregnant women, the Food and Drug Administration said. No illnesses have been reported to date in connection with the bars. The agency is working with the importers to have the affected products removed from the marketplace.