Clipper and Traffic Analysis

[Perry E. Metzger]

Mike Godwin says:
> 
> Does anyone here have any thoughts as to whether Clipper enables traffic
> analysis or tracing more easy than it normally is under Switching System
> 7? The reason I ask is, I have this sense that one reason the government
> likes Clipper is that the Law Enforcement Access Field enables agents
> to draw inferences about who's talking to whom and what they're saying,
> even without decrypting the actual communications.
> 
> What do you think?

Normally, one can only determine the endpoints of a conversation. With
clipper, however, one can deduce a lot more, since when people move
around, go to hotels, phone booths, etc, you can still track their
clipper serial numbers.

Perry