Kerr Rotation, Pre-Measurement, Bell's Inequality

I have a question, after having read about a non-destructive spin
measurement experiment, which was cited as one of the top science
stories of 2006:

http://physicsweb.org/articles/news/10/12/15/1#11

http://optics.org/cws/Articles/ViewArticle.do;jsessionid=D7E47731913829DB57F86B4716735268?articleId=26434&channel=technology&page=1

So that announcement immediately makes me wonder about Bell's
Inequality:

http://en.wikipedia.org/wiki/Bell%27s_inequality#Description_of_Bell.27s_theorem

They say that you can't use the "spooky action at a distance"
(correlation violation) to communicate with, since you can't
predict/measure in advance what an entangled particle's state will be.

But the non-destructive measurement experiment shows that you can
indeed measure it in advance, without significantly disturbing/altering
that particle's state (or its entanglement?)

Wouldn't this Kerr rotation measurement method then allow for the
pre-screening of entangled pairs, based on measurement in advance of
state properties like spin?

Couldn't this then be used to exploit the correlation violation (aka
"spooky action at a distance") in such a way as to permit its use for
communication?

For instance, using the Alice & Bob example, wouldn't it be possible to
use pre-measured entangled electron pairs of known spin state, and use
the orientation of the apparatus on one end as a way to modulate an
information signal, which would then be detected with the other party
through the correlation violation?

To me, it would seem intuitive that the answer is yes. Why shouldn't
this be able to work?
Please, someone kindly take the time to give me a reasoned reply, even
if my post sounds ignorant.

.

Relevant Pages

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  • Re: Bells inequality vs. Kerr Rotation
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