There are also other non POTUS FBI speeches that ref yellow brick road…
June 13th 2017 = https://leb.fbi.gov/bulletin-highlights/notable-speeches/notable-speech-an-opportunity-like-no-other
The challenges prepared us for the Yellow Brick Road: 6.1 miles of endurance and strength. But, these challenges made us realize and appreciate the most important thing about this journey—there’s no place like home.
Sept 27 2017 = https://leb.fbi.gov/bulletin-highlights/notable-speeches/notable-speech-everything-they-said-it-would-be
Then, there was our physical fitness training, which was intense throughout each week, with the apex being the Wednesday fitness challenge. The Cyclone, the Lion’s Leap, and the Wicked Witch Hunt, to name a few, all tested our endurance, but nothing could keep us from arriving at the Yellow Brick Road.
Also ..
What is the Yellow Brick Road FBI?
The "Yellow Brick Road"
National Academy graduates fondly recall their experience on the “Yellow Brick Road.” The final test of the fitness challenge, the Yellow Brick Road is a grueling 6.1-mile run through a hilly, wooded trail built by the Marines.