News Summary: Suppliers, grocers to DNA test meat

GOT BEEF?: Several food processors and retailers say they will start DNA testing their meat after horse was found in burgers — ostensibly made of cow meat — in supermarkets in Britain and Ireland.

THE NAKED TRUTH: Plain horsemeat isn't bad for you, but the thought that British and Irish consumers have unknowingly been eating it in their burgers for a year has unnerved regulators, politicians and grocery-store investors. The mislabeling and contamination also raise food security worries.

GET THEE TO A LAB: Supermarket chains Tesco and Iceland say they'll start DNA testing on meat, as will the parent company of the supplier of the recently discovered horsemeat-tainted products and other Irish processors.