Base jumper
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Base jumpers defend safety aspect of their chosen sport

22 June 2014 Last updated at 08:14 BST

The Swiss Alps are famous for adventure sports, some more dangerous than others.

One in particular, base jumping, is causing controversy - its fans say it is the ultimate experience, but its critics say it is nothing more than a gamble with life.

Imogen Foulkes reports from Switzerland.

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