Mitt Romney accepted the GOP nomination for president Thursday night at the Republican National Convention, promising to create jobs and boost the economy. Host Michel Martin checks in with Corey Ealons; he's a former communications adviser to the Obama administration; and with Ron Christie, a former aide to Vice President Dick Cheney.
A team of researchers are using multispectral imaging to uncover hidden text on a 1491 Martellus map, one of the most important maps in history. Lead researcher Chet Van Duzer thinks the discoveries will allow historians and scholars to see just how the map influenced cartography in its time.
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