Saw it on the TV news, samonella on tomatoes and this is not the first time either. I always wash store-bought vegetables that I do not cook. Onions, toss the top layer. Head lettuce, toss top layer and check the rest for bugs. Some stuff gets peeled and other stuff gets cooked, so that don't matter. But is rinsing stuff enough? Stuff like tomatoes and loose-leaf lettuce? I generally just rinse in cold water. Is that safe?