Thousands of construction workers in Dubai went on strike this week. One of their complaints is that they're paid in U.S. dollars. The falling dollar is putting a lot of pressure on Gulf countries to de-link their currencies from the greenback. John Dimsdale reports.

Democratic presidential candidates are calling for a tax increase to fund Social Security for retiring baby-boomers. But commentator Glenn Hubbard argues that proposal doesn't get to the heart of the problem.

The United States has promised to help Turkey stop Kurdish PKK guerrillas from operating in Northern Iraq. The PKK has killed dozens of Turkish military personnel across the border. Tess Vigeland talked with L.A. Times reporter Borzou Daragahi about attempts to defuse the situation.