WASHINGTON (AP) -- Consumers worried about salad safety may soon be able to buy fresh spinach and iceberg lettuce zapped with just enough radiation to kill E. coli and a few other germs.

The Food and Drug Administration on Friday will issue a new regulation allowing spinach and lettuce sellers to take that extra step, a long-awaited move amid increasing outbreaks from raw produce.

It doesn't excuse dirty produce, warned Dr. Laura Tarantino, FDA's chief of food additive safety. Farms and processors still must follow standard rules to keep the greens as clean as possible -- and consumers, too, should wash the leaves before eating. ....