Australia takes legal action to stop Japan whaling

Australia has launched legal action at the International Court of Justice to stop Japan's hunting of whales, Japanese officials said Tuesday, calling the move "extremely regrettable".

Q&A: Why are antibiotics used in livestock?

Wal-Mart, the world's biggest retailer, is the latest company to ask its suppliers to curb the use of antibiotics in farm animals. Here's a rundown of what's driving the decision:

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