The US has discrimination of race. As we all know, many kinds of race are living in The = the US. That's why there is a discrimination.
There are discrimination about black people , Asian and even European. I think this problem came from color of skin.
Nowadays this discrimination is disappearing and it almost disappeared, but it still exists in The = the US.
When I watch American TV shows I can watch scene about discrimination of race easily.
I think the discrimination about black people is the strongest among others.
Maybe this is fixed in people's mind. Even though the president of The = the is a black guy, people still think black people are dangerous.