17 Dec
2003
17 Dec
'03
11:17 p.m.
Excerpts from internet.cypherpunks: 18-Mar-94 Re: spyproofing your house/.. by Arsen Ray Arachelian@pri
<<Except that they would go off whenever the sun was up, or whenever a car with its headlights on drives up.>>
So is there a way to detect the specific IR that the bad guys use?
Measure the ratio of IR to visible light.