Exposing young children to pesticides in fruit, vegetables and popular nibbles like crisps may cause them serious health problems in later life, a report [by Friends of the Earth] urging retailers to eliminate such residues said this week..."Retailers should come clean with their customers by publishing the results of their residue testing - so far only the Co-op and M&S have been honest enough to do this," she [Sandra Bell, Friends of the Earth] said.