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Republican Sen. Rand Paul of Kentucky doubled down Tuesday on a previous call for a path to citizenship, telling a major Hispanic business group that his message to the nation's illegal immigrants is: "If you wish to live and work in America, then we will find a place for you."

Conservatives, he told the U.S. Hispanic Chamber of Commerce, must "become part of the solution" to immigration, including dealing with the estimated 11 million illegal immigrants now living in the U.S. In his Washington speech, Paul said:

Mammography outcomes from nearly a million U.S. women suggest which ones under 50 would stand the greatest chance of benefiting from regular screening: those with very dense breasts.

That's been a bone of contention ever since a federal task force declared nearly four years ago that women younger than 50 shouldn't routinely get the test.

Most people are aware of the positive effects of breast-feeding. But in many areas of the country, breast-feeding is not the cultural norm, and there's little support available for mothers. Host Michel Martin talks with Kimberly Seals Allers, the co-author of a new report on so-called "first food deserts," and a nursing mother, Areti Gourzis.

On Monday, the Supreme Court heard arguments about an Arizona law that requires voters to prove their citizenship before registering. Host Michel Martin discusses that and other voting rights cases with Hans Von Spakovsky of conservative think tank The Heritage Foundation, and Spencer Overton of George Washington Law.