Couple, kids lost in frigid Nevada heated rocks in fire to survive
A couple and four children who vanished in sub-zero conditions in the mountains of northern Nevada were found safe Tuesday and revealed they had heated rocks in a fire to keep warm, officials said.
Immigration: A Nation Divided
Immigration divides the nation
Rep. Gabrielle Giffords, D-Ariz., explains the polarizing nature of the immigration issue in America.
Immigration: Key players in the debate
Some of the people and advocacy groups trying to shape U.S. immigration policy.
Immigration to the U.S.
A look at immigration policy since 1790.