In an effort to bring Iran to the negotiating table over its nuclear program through economic pain, both the U.S. and the European Union have imposed sanctions that should make it harder for Iran to sell its oil. But the global oil business is unpredictable, and sanctions are no guarantee.
Kano, the largest city in Nigeria's Muslim north, is an ancient, sprawling city of more than 9 million. Last Friday, the Muslim day of prayers was shattered by a series of coordinated bomb blasts.
Just down the street from one of the main market areas in the city, the street remains blocked off from a police station hit in the attacks. The radical Islamist sect Boko Haram claimed responsibility.
Sagir Ali, a security guard at a parking lot at the market, says he watched as nearby government offices were attacked.
The practice of hydraulic fracturing — pumping fluid into underground rock to push up natural gas — has its detractors, especially among environmentalists. But it's becoming clear that whatever its drawbacks, "fracking," as it's called, is producing a lot of gas — maybe too much gas.
Fracking was once a small part of the natural gas industry, a technique to get hard-to-reach deposits in underground shale. Then the technology improved, and the dinner bell rang. Everybody wanted in. Now there's so much gas on the market that the price is at a 10-year low.