Yemen on the brink of chaos

In Yemen, the security situation has got so bad that the country is on the brink of a fully-fledged civil war. In the month since Shiite Houthi rebels took control of the capital Sanaa, they have gained more ground. Meanwhile, al Qaeda's Yemen branch is portraying itself as the champion of the Sunni population. In this war for territory, religion and political domination, the central government appears powerless.