MAPLEWOOD, Minn. -- Scotchgard is back. The familiar plaid aerosol can never really disappeared from the shelves. But Scotchgard's journey back to the market has been rocky -- and the stain-repellent ...

Q Scotchgard contains perfluorochemicals, which have been in the news. I have Scotchgard on my children's mattresses. Can they safely sleep on these? Also, some lakes contain these chemicals. Can ...