an old classic...

a good movie, but nail biting real life. And considering it was between great wars.
In todays world common citizens are no match for trained people with a mission, especially when they can be called, minorities; ethnic protections, class protections, and racial protections, or if they are openly ANTI nation they are in and involved in government, or have a REAL purpose in knocking down the country they are in. And the citizens can do very little to protect themselves when the spys become protected in spying activities by Law, and Business, and can amass great fortunes to upset a countries economy.

Food for thought.
A good romp when we are young and innocent, a bad trip when we are old and have a few parties under our belts.

Ticks Ticks thousands of ticks, and not one blessed TOCK among them!