Frog and toad populations are in decline around the world, and scientists in the U.S. rely on regular citizens to help keep track of population changes around the country. The Chattanooga Zoo is hosting a training session for people to learn how to identify local frogs and report their findings. Rick Jackson, who works with frogs at the zoo, explains what the training will be like and gives some on-air pointers for identifying local frogs.

Beef Products Inc., which turns fatty beef trimmings into a lean beef product that ends up in ground beef, announced today it is suspending operations at three of its four plants. But a company spokesman says the fatty trimmings that safety experts admit can harbor pathogens will still end up in the ground beef supply.

No circus would be complete without a few animals.

So wouldn't you know the big crowd outside the U.S. Supreme Court today included a cat on a leash and an adorable chihuahua mix with health insurance.

Kaiser Health News' Jessica Marcy snapped the shot of the cat, stretched out on the steps leading to the courthouse, as she was rushing to cover the arrival of Republican presidential candidate Rick Santorum.

On Friday, we reported that former New Jersey Gov. Jon S. Corzine directly ordered $200 million transfered from a segregated customer account to an MF Global account in London, according to a memo from the House Committee on Financial Services.

When your political opponent hands you a gift, take it.

Listeners who have HD radio receivers can now tune in to WUTC-HD2, a new radio service broadcasting 24 hours a day in Chattanooga, Tennessee.  WUTC-HD2 provides hours of CD-quality music, plus two weekday NPR news shows.  Listen online or tune your HD radio to 88.1-1 and dial up WUTC's second channel at 88.1-2.

The Diane Rehm Show airs weekdays from 10 a.m. to 12 p.m. EST on WUTC-HD2.

The U.S. Supreme Court signaled Monday that it likely will resolve the constitutional challenge to the Obama health care overhaul, sidestepping the procedural issues that could derail the case until 2015.

The Exxon Valdez appears headed for a scrap heap. In the 23 years since it spewed oil across Alaska's Prince William Sound, the tanker has changed names, owners and purpose. Melissa Block and Robert Siegel look back at what the infamous ship has been up to since the 1989 environmental disaster.

The Supreme Court has received more than 100 amicus briefs in the health care cases. Melissa Block and Robert Siegel explain what they are, what's involved and what impact they have.

Gasoline prices seem to be going up every day, and motorists are looking to squeeze every penny of savings out of each fill-up. Well, as it turns out with so many things these days, smartphone apps can help.

Companies have applications for most smartphones out there to help people find the cheapest gas in town. I tried out six applications on an iPhone and narrowed the selection to two that I found the easiest to use: GasBuddy and Fuel Finder.