Read the following excerpt from The Jungle and answer the corresponding question in 3-5 sentences
There would be meat that had tumbled out on the floor, in the dirt and sawdust, where the workers had tramped and spit... There would be meat stored in great piles in rooms; and the water from leaky roofs would drip over it, and thousands of rats would race about on it. It was too dark in these storage places to see well, but a man could run his hand over these piles of meat and sweep off handfuls of the dried dung of rats.
What is Upton Sinclair describing in this quote? How did this have an impact on the american people and laws?