Please help me in answering these two questions about the article below.

ARTICLE:

More than 100 years ago, Upton Sinclair wrote his famous book,The Jungle, about the outrageousconditions in Chicago-area slaughterhouses. Although slaughterhouse conditions have undoubtedly improved, working in meatpacking plants can still be strikingly dangerous.255

In one such plant, in Kansas, the first two(daytime) work shifts oversee the actual processing of approximately 6,000 cows per day. After that, the third, 11p.mshift starts as the sanitation crews arrive. These workers have to wade through slippery conditions, including grease and parts left over from the day shifts' work. The sanitation crew's job is to clean the plant and its machines and conveyors with boiling water and disinfectants.

Several years ago, a female sanitation crew worker was finishing cleaning the belt on one of the conveyors. She had shut down the conveyor when she cleaned it. However, after turning it back on, she noticed she had missed some animal fat dirt below the conveyor. With the belt still moving she reached under it to get the dirt. She lost her balance and tried to catch herself, but her hand and then her arm were drawn into the machine and completely mangled.

QUESTIONS:

PLEASE MAKE EACH QUESTION IS LONE ENOUGH TO EXPLAIN CORRECTLY & CITE 4 SOURCES (WEBSITES)

1. Choose one thing that you would tell the meatpacking company to change, whatwould it be?
2. Would it be advisable for them to set up a procedure for screening out accident-prone individuals? Why or why not? If so, how should they screen them?