Sources say President Barack Obama will visit Moore, Okla., on Sunday, following a mammoth tornado there that killed at least 24, according to NBC News and The Associated Press.

The Internal Revenue Service official who headed the division involved in targeting conservative groups invoked her constitutional right against self-incrimination Wednesday and refused to answer questions from a congressional committee.

Lois Lerner r...

Crowdfunding websites are seeing donations pour in following the deadly tornado that ravaged Moore, Okla.

More than a dozen separate campaigns popped up on crowdfunding site, Fundly, less than 24 hours after the tornado swept through the Oklahoma Cit...

If you've been dreaming of strapping on your own "Iron Man" armor, you might have to wait a while longer. But revolutionary "bionic exoskeletons," like the metal suit worn by comic book hero Tony Stark, might be closer than you think -- just don't expect to fly away in one.