Other than the government with it's war on terror, who has actually done anything to perpetrate fear in the population?

Since 2001, there has been no terrorist activity against the US. You are told about threats the war on terror has dealt with, but no actual action or actors can be pointed to yet the government is keeps the fear of terror alive. They have done far more to that end than any terrorist organization has. This causes the population in general to accept any course of action that they are told will deal with that looming threat, but it never seems to do so.

Once side of the government generates and keeps the fear alive, the other side uses the fear to do what they wish. Neither side wants the fear to go away.

The US Government is the largest group terrorizing the US population today. They use the war on terror to do it.