Freedom includes freedom from government control and freedom from anarchist(terrorist) control.
The only control they are exercising is to ratchet up your fear level to the point that you are willing to toss your governmental structure overboard in an effort to minimize the already limited threat posed by a bunch of 14th century deluded Saladin wannabes.
They are less of a threat that any enemy of this country in the last century, yet you cower before them and plead with the State to do anything and everything to protect you. Being so pathetically weak has nothing to do with what made this country what it is.