Hear how the U.S. Air Force is expanding — into space.
The story of one man's 20 year mission to build a home for 200 orphans near the Mexican border town of Guadalupe.
Why U.S.Justice Department prosecutors are deciding whether to bring criminal contempt of court charges against Maricopa County Sheriff Joe Arpaio.
Parents are sending thousands of children alone to work in the U.S. Some end up working as slaves. How do they manage this dangerous life on their own?
A non-profit organization is working to match the DNA of hundreds of unidentified who died crossing the Arizona-Mexico border with familymembers living in the U.S.