Dietzen believes that the logic for the switch is clear to customers.

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It's a tricky balancing act to pull off, and lots could go wrong -- for instance, it's not exactly clear how smooth it will be to switch between the two types of Windows, or if you'll even be able to get the old Windows on certain types of tablets (that is, tablets that run the power-efficient ARM processors used by the iPad and most other tablets today).

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The second, called electrochromic, requires voltage to switch the transparency from clear to opaque.

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Initially open with glass walls, the master-bedroom suite can be closed off from the rest of the home with a type of glass that turns from clear to opaque at the flip of a switch.

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It is not yet clear how much the switch would cost if rolled out to all of Norfolk's 1, 500 officers.

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Several things, however, are clear: the trolls and spam were largely nuked in the time it took to throw the switch.

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And if users switch, it is not clear if they will stay with the new system or return to the former.

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Let me be clear - I am not advocating such a switch, but exploring the reasons why it is not going to happen, and what the alternatives are.

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