I have vague childhood memories of the glory of McDonald's fries. As I grew older I wondered why they weren't as good as my memories. I figured it was just childhood nostalgia. It wasn't until I heard Malcolm Gladwell recount the tale of how McDonald's betrayed the American people and replaced beef tallow with seed oil in their fries that I understood. 

With the rise in pro-animal fat sentiment and recent McDonalds news/entertainment events I think it is worth revisiting. Revisionist History from 2017.

https://youtu.be/HVpJAJjDI8U