Is Expressing Anger Always Bad?

Anger is like pumping air into a balloon. When it starts to get overinflated, little leaks sprout up. Most of us try to cover those little holes with band-aids, such as alcohol, food, screen time, etc... But that only causes new holes to spring up. We must learn to turn off the air pump if we want to get to the root of the problem.But is anger always bad? Is it ever justified? Can it be good if we use it to fuel positive change in society? And isn't it worse if we try to stuff our anger down?...