I believe you mean the nuclear family? If this is the case, it is two heterosexual parents (male and female) with one or more kids. If you meant the unclear family this would be the family that always does weird things and never makes scene.
King Charles I was forced to sign the petition of rights
It would be the "Ku Klux Klan" that is considered to be a domestic terrorist group, since they have a long history of intimidating people (especially blacks and Jews) with whom they disagree and degrade.