Stamps might be the world's largest, and tiniest, portrait collection.
Before cable news and email and Twitter, it was the postal service that transmitted ideas and information across land, sea, and political divides. Kim speaks with National Postal Museum chief curator Dan Piazza about the ways stamps have connected us and the messages they've communicated, including a few asides from Philatelist-in-Chief, Franklin D. Roosevelt.
These tiny portraits contain a lot of stories about the United States. And some of them are actually based on iconic artwork that lives at the National Portrait Gallery.