Talk of the Nation

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 April deadline comes around at about the same time every year. Still, with just a few days left before taxes are due, many people continue to put off filing.

The boxes of receipts, stacks of W-2s and 1099s are daunting enough. Add in row after row of fill-in boxes on the 1040, and it's no wonder so many people procrastinate.

Rick Santorum, Republican candidate for president, has suspended his campaign. From his home state of Pennsylvania and surrounded by his family, Santorum told the assembled crowd that though his race was over, the fight to defeat President Obama would continue.