So there was a massive incentive to try and manipulate that rate.

BBC: Barclays 'attempted to manipulate interest rates'

This involved a decision by Barclays to manipulate the rate during the credit crunch of 2007-08, with the purpose of avoiding the impression that Barclays was in trouble.

BBC: The strange silence and an absence of information

In one instance a trader would regularly shout out to colleagues that he was trying to manipulate the rate to a particular level, to check whether they had any conflicting requests.

ECONOMIST: The LIBOR scandal: The rotten heart of finance | The