Summary: Did you know there's an entire country north of The United States? We'll learn more about this mysterious land with today's guest judge, Slate's unofficial Canada correspondent, Chris Berube. He tells us that Canadians call seltzer "club soda." Go figure: It's just like Canadians to figure out how to spell "seltzer" with the letter "U." (Also, we are aware club soda is technically different from seltzer. Please send your angry letters to Canada Dry, c/o Dr Pepper/Seven Up, Inc.) In today's final semifinal, Saratoga and Adirondack Lemon Lime compete to advance to the final final.
