The Prime Minister's spokesman said that a Twitter error that saw David Cameron link to an account spoofing Iain Duncan Smith was 'one to take on the chin'.
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Twitter is to end its video-sharing service Vine.
A Lib Dem peer has quit the party following her suspension for chairing a meeting at which Jews were allegedly blamed for the Holocaust.
A second man has been found guilty for the manslaughter of delivery driver Ali Qasemi who was killed for £52 worth of pizza.