Here is a recently released video inside a Cargill plant.
From the link:
"Remember, this video was produced by McDonald's Canada, so this is the nicest possible face that can be put on the mass-production of Chicken McNuggets. Though it was filmed at a Canadian supplier, McDonald's told the Huffington Post that the process is the same in the U.S."
Why do I feel a bit suspicious we're not getting the whole truth?