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Bang Goes The Theory 5: Episode 7

Updated Monday 26th September 2011

This week the Bang team look at global helium reserves, radiation, and airline security

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Bang's Liz Bonnin looks at airline security Copyrighted image Icon Copyright: BBC Liz investigates a new kind of airline security

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Bang Goes The Theory can be seen on BBC One (England) and BBC Two (Scotland and Wales) on September 26th at 7.30pm. Full schedule and iPlayer links are on Read more about the current series.

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