Sophisticated and lethal, growing in number, Islamic State and other extremist groups won't become a global force. Here's why.
Many see the violence in Yemen as a proxy war between Sunni Saudi Arabia and Shiite Iran. That's true to an extent, but risks oversimplification.
Fears of a sectarian war in Yemen increased as the largest protests erupted since the Houthis seized power. The US State Department warned of risks to the diplomatic community in Sanaa.
The Houthis who took control of Yemen's capital hinted they might be willing to work with the US. But there's still the problem of their 'death to America' chants.
A Houthi rebel leader stopped short of deposing his rival after his forces sacked the presidential palace today in Yemen's capital.