People are talking about some athletes going down on one knee during the American national anthem.

Some people think it’s a good idea, and some people think it’s a bad idea.

The idea of going down on one knee (known as “taking a knee”) started in 2016. That’s when American football player Colin Kaepernick took a knee before games during the American national anthem.

He did it to protest people of colour being treated unfairly by police (in this case, in the United States). For instance, many African Americans may be questioned by police (when they have done nothing wrong) or pulled over when they are driving (again, when they have done nothing wrong).