Talk about double messages. Two federal courts have come out with decisions that could 1) limit and 2) increase the number of toxic chemicals to which Americans are exposed. The first concerns four pesticides -- used on crops including tomatoes, fruits and grains -- that cause cancer in laboratory animals. When these crops are processed into jellies, say, or catsup, the pesticides become more concentrated than they are in the field. Even then, the Environmental Protection Agency says, the risk of cancer is 1 in a million at most, and the chemicals should stay on the market.
But a 1958 law...
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