That's not changing anytime soon. In our current climate there's a lot of dissatisfaction, racism and anger. I'm not even sure which incident this question is referring to, but there are so many , which is really sad. Even Trump tossed an african american supporter from one of his rallys based only on the color of his skin.
Yes, the case of an assaulted black teen shows that the racial tensions are still high. We need to create change immediately. Too many black men are being killed or injured because someone is afraid of them. Why are they afraid? They are afraid because of systematic failures throughout the country.
Yes, racial tensions are still high. Depending on who assualted the black teenager, racial tensions are high no matter what. Racism still exists, it's just a lot more subtle than it used to be. There are whole systems put in place that have been well documented to disenfranchise people of color, and there has been for decades, centuries even. It takes time to rectify centuries of oppression, so yes, racial tensions are very high.
No, I do not believe one case of an assaulted black teen shows that racial tensions are still high. Every case is so diverse and the circumstances are different that just because a black teen was assaulted doesn't mean it has anything to do with racial tensions. The media seems to be making the racial tensions deal bigger then it needs to be.