The United Nations announced Thursday that it is relocating 600 staff members or about half of its international workers in Afghanistan following an attack by Taliban aimed at its staff. The attack last week left 5 staffers dead. While the organization said it is still committed to Afghanistan, the relocation indicates how poor security has become in the country. The U.N. is considering other locations including Dubai for the workers. "There is no going back to the previous situation we were in. Our security clearly isn't up to the job of dealing with these kinds of attacks," a spokesman said.