Oil price slides again - OPEC says "no panic"

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"We're concerned. But it's not time to panic." That's the message from OPEC secretary general, Abdulla el-Badri, as the price of oil continues to slide. WBR hears from oil producers in Vienna and an oil expert in London, as well from the US on its own energy revolution. There's more controversy over secretive corporate tax deals, this time in Luxembourg. In Catalonia voters are preparing for a controversial referendum on independence from Spain - we hear from Barcelona on what it might mean for the region and the country. And finally... do women pay more than men for exactly the same consumer items? Our reporter investigates whether there really is an "invisible tax" on women.