It is an invasion of privacy if you do not consent to have
your data used as such. In most cases, people willingly signed
over those rights. Check the ToS on Facebook for example.
Secondly, opting in is not the issue, opting out is.
There is also the concept of context and traverse ability. I
may have your weight recorded but in a manner where it is not
directly attributable to you without further correlation.
Cookies are a good example of this.
Duane Nickull
***********************************
Technoracle Advanced Systems Inc.
Consulting and Contracting; Proven Results!
i. Neo4J, PDF, Java, LiveCycle ES, Flex, AIR, CQ5 &
Mobile
t. @duanenickull
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