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Service dogs help veterans with physical disabilities, and there's increased interest in using dogs for symptoms of post-traumatic stress disorder, too. A study is underway to see whether that helps.

The California State Teachers' Retirement System is the second-largest public pension fund in the U.S., managing nearly $200 billion. Melissa Block talks to the fund's CEO, Jack Ehnes.

The chytrid fungus has wiped out populations of amphibians around the world. A type of the fungus infects only salamanders, and researchers have identified vulnerable areas in North America.

Host Melissa Block speaks to West Virginia University law professor James Van Nostrand about the impact of EPA power plant rules in his state.

Some people wind up having to pay hospital deductibles on top of other medical deductibles. But those do not apply to outpatient procedures.

There's a lot at stake for Carly Fiorina at tonight's Republican debate. She joins 10 men on stage, including Donald Trump, who was recently quoted making negative comments about her face.

Fifteen Republican presidential candidates will be at the Ronald Reagan Presidential Library in California for the second debate Wednesday night.

On his first state visit, President Xi Jinping will meet with tech CEOs in Seattle before going to Washington, where he aims to allay U.S. concerns over cyber-security, human rights and other issues.

Diego Roman Elena Rodriguez's brother was unarmed, walking on a sidewalk in Nogales, when Lonnie Swartz shot him. The agent says he felt threatened by rock-throwers; he's expected to plead not guilty.

Robert Siegel talks with Democratic National Committee Chairwoman Debbie Wasserman Schultz ahead of the midterm elections.