An Arizona judge declared a mistrial in the penalty phase of the Jodi Arias trial Thursday after a deadlocked jury said it couldn't decide whether to sentence her to death for the murder of her ex-boyfriend.

Health insurers in California will charge an average of $304 a month for the cheapest silver-level plan in state-based exchanges next year, according to rates released Thursday by Covered California.

The Internal Revenue Service official overseeing the unit that targeted conservative groups for several years beginning in the spring of 2010 has been placed on administrative leave, according to Congressional sources in both parties.

Lois Lerner was ...

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.