Can, or does, slavery/forced labor still exist in the United States today?

it does it a way i guess

Explanation: child labor, some children are still forced to work

The last country to officially abolish slavery was Mauritania in 1981. Nevertheless, there are an estimated 40.3 million people worldwide subject to some form of modern slavery.

I don't know if that's what you want, but that's what I know.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

answer; protectionism fosters competition and keeps price regulated;