GOP presidential hopeful Rick Santorum has been getting help from anti-abortion group Susan B. Anthony List as he campaigns this primary season, so far receiving nearly $500,000 in ads and other support.

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JENNIFER LUDDEN, HOST:

This is TALK OF THE NATION. I'm Jennifer Ludden, in Washington. Neal Conan is away. Losing a loved one is, simply put, painful. Such separation brings extreme sadness that can feel sometimes too heavy to bear. The Irish writer C.S. Lewis chronicled his suffering and healing after his wife died of cancer at the age of 45.

Comedians Keegan-Michael Key and Jordan Peele push stereotypes to new — and sometimes uncomfortable — levels in their jokes.

On stage, on MadTV and now in their Comedy Central show, Key & Peele, they find the humor in their biracial upbringings and the many roles of black men in America.

NPR's Jennifer Ludden reads from listener comments on previous show topics including the controversy over mapping Muslims, the jump in grey divorces, reaction to the viral video Kony 2012, and leaving the Catholic Church.

An advertising agency sparked controversy at the South by Southwest technology conference when it hired homeless people in Austin to act as "Homeless Hotspots." Critics charge that it exploits the homeless. But Megan Garber, a staff writer for The Atlantic, sees some good in the project.

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JENNIFER LUDDEN, HOST:

This is TALK OF THE NATION. I'm Jennifer Ludden in Washington; Neal Conan is away. We still don't know why a U.S. Army soldier allegedly murdered 16 men, women and children in Afghanistan. That investigation continues. The consequences, though, seem clear.

The families involved are devastated. The Taliban promises revenge. The Afghan Parliament issued a statement saying Afghans had run out of patience with foreign soldiers, and the New York Times reports that the Obama administration is debating a speedier pullout from the country.

Much has been reported in recent years about payday loans and the huge fees and sky-high interest charges that borrowers can rack up if they use such services.

And though their demise has been predicted, they live on.