The UK government is setting out its case for the Union, ahead of the 2014 Scottish independence referendum.
Westminster says it will explain in detail why people and companies in Scotland benefit from its place in the UK.
Scottish Secretary Michael Moore began outlining the Government's vision if the Union continues.
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Pictures from the commemoration marking the centenary of the Quintinshill rail disaster, which killed more than 200 people, is underway.
The 100th anniversary of Britain's worst rail disaster will be commemorated at a special service today.
A look ahead at the forecast for the Border region.