On-air challenge: This is a game of categories based on the word "guard." For each category I give you, name something in it starting with each of the letters G-U-A-R-D.
For example, if the category were "Three-Syllable Girls' Names," you might say Gabrielle, Ursula, Andrea, Rosalind and Diana. Any answer that works is fine, and you can give the answers in any order.
This week's special guest: Savannah Guthrie, co-host of NBC's Today.