The Washington Post has a fascinating article about the new dollar coin and the marketing of currency. My impression as I read through the article was that paying tax dollars to buy commercials for new currency was a ridiculous waste of money. It wasn’t until the end that I learned that the U.S. Mint is actually a profit-making machine. The Mint’s annual revenue is 2.5 billion dollars, and 1.1 billion of that is profit. Go, Sacagawea, go.