While there's a perception that a wireless network is less secure than a wired system, Green said new security protocols have made wireless more secure.

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The reasons for developing a cleaner, safer, more secure energy system are well known.

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But because Conservatives fear that they would not win an outright majority in a proportional representation (PR) system, the Lib Dems could secure only a more modest prize: a referendum on keeping FPTP or adopting the alternative vote (AV).

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More signal input subsequently equals a more secure position read-out, with the elderly base system offering initial location accuracy to around 100 meters.

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