(Global Edition) From the BBC World Service ... More revelations from the leak of more than 13 million confidential tax documents from the offshore law firm Appelby — this time it's Apple that's in the crosshairs. What's the world's biggest company being accused of? Then, although there's no official definition for a tax haven, the island of Guernsey — between Britain and France — has often been considered one. While the crown dependency has not been named in the Paradise Papers leak, the island's chief minister speaks out, calling it a "political move" to publish stories related what he calls "stolen documents." Afterwards, oil prices are hovering near two-year highs. When we talk about the price of oil, we typically mention the European oil price, Brent crude, and the U.S. oil price, West Texas Intermediate Crude. Why?