…Yemen, the poorest Arab nation, is seeing annual tourist numbers dwindle to the thousands from 100,000 two decades ago because of worsening security. This is ending government hopes that its historical landmarks, including the 3,000-year-old Queen of Sheba temple and four United Nations World Heritage sites, can generate revenue and jobs to diversify the oil- dominated economy.

The country

The threat is rising of social unrest that could strengthen al-Qaeda as it seeks to use Yemen as a base to destabilize neighboring Saudi Arabia, the world