Mara Liasson

Jun. 19, 2009

Health Care Reform

The White House is trying to push forward its plans for reform of the US health care system, with President Obama giving a speech to the American Medical Association outlining parts of his proposals. In this hour, we'll try to sort out the options.

health care policy, health insurance, medical care, doctors

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Michael Pollan Talks Plants and Food

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Whale Tales

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How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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