PMQs: David Cameron quotes Robert Burns on the union

The words of Robbie Burns were quoted by Conservative MP Eleanor Laing and the prime minister to speak up for Scotland's role within the UK.

David Cameron read from To A Mouse on the day of Burns Night at PMQs.

They spoke ahead of Scotland's First Minister Alex Salmond's expected announcement of legislation for a Scottish independence vote, as politicians disagree on the date and question, or questions, to be put to the Scottish people.