The United States does not have a rich diamond mining history. But an exhibit at the Smithsonian proves that some of the world’s most dazzling gems are homegrown. We speak with Gabriela Farfan, curator of gems and minerals at the Smithsonian National Museum of Natural History, about two of their best American gems on display. And, voting by mail became a major political flashpoint during the COVID-19 pandemic, but controversies over voting remotely aren't new. During the Civil War, tens of thousands of soldiers used a simple envelope to cast their ballot from the battlefield. Dan Piazza from the Smithsonian National Postal Museum tells the story of one of those envelopes.
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