"[The Americans] is about delusions—romantic, political, bureaucratic, tactical, marital, fashion (the year is 1981). And parental: Can Elizabeth really think that her children “understand” a father whom they believe is a travel agent but is actually a spy and assassin who’s just staged a sham wedding with a deluded F.B.I. secretary at which their mother pretended to be his sister? Can the K.G.B. really think that Al Haig might attempt a military coup after John Hinckley shoots Ronald Reagan—a major plot element in an early episode? Maybe they can.
It’s often said, admiringly, that “The Americans” is a show about marriage that is dressed up as a spy drama. One of its premises is that marriage itself is a matter of dressing up and performing, and that those enactments, particularly when children are watching, can be its most genuine part."