Rick Santorum ended his presidential campaign Tuesday. It clears the way for Mitt Romney to capture the nomination, though many conservatives have yet to rally around the former Massachusetts governor. The Romney campaign now shifts into the general campaign, with a focus on President Obama.
It's time to kill the penny. That's what Daniel Akst argues in a recent op-ed on Newsday.com. "Pennies," he writes, "are a pain in the neck, only more so because they're worthless." While the penny isn't quite worthless, it does cost more than two cents to create each one.
NPR's Neal Conan reads from listener comments on past Talk of the Nation shows, including the emergence of robots across the country, the racial history of Sanford, Florida, and the new balance of power in retail.
The uproar over what critics call "pink slime" in some ground beef refocused attention on what's in the food we eat. Most packaged foods contain at least one item you wouldn't recognize. But many food experts caution that just because you don't know an ingredient doesn't mean you shouldn't eat it.