Georgia missile-handling building Faraday cage

Student in the class describes a Faraday cage installed at a missile-handling building in Georgia — four towers approximately 300 yards apart with cables strung between them in an X pattern — for communications security (preventing eavesdropping rather than for radiation containment). Tom uses it to illustrate Faraday-cage principles in the context of lightning protection code history.

Frankly, if you look at a lightning protection system for a home today, it's nothing more than putting a bunch of metal straps around your house with a terminal at the top to try to make a Faraday cage. Does everybody know what a Faraday cage is?

Student: Yes, we had them on the missile handling building in Georgia, but it was to prevent radiation getting out.

Student: For communication purposes — basically can't eavesdrop on the building.