There were over 450 US domestic terror attacks in 1970. It's relevant today because the context it provides shows how we have been historically safe from attacks on US soil for over 40 years.
The last 20 years of terror hysteria created a false mindset that Americans are at meaningful risk of dying in a terror attack. Trillions have been wasted on infrastructure - that can only be responsibly explained as a tool to nurture and reinforce that mindset.
And of course there are the ever increasing loss of civil liberties, each loss shifting power toward Gov and away from us.