Speaking in Glasgow Chancellor George Osborne said, "the conclusion is clear, the pound we share works well. The saying goes - if it ain't broke don't fix it, but I say, if it ain't broke don't break it."
He added, "I want the best for Scotland and for all our United Kingdom. We're better together."
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A year ago the International Court of Justice ruled that Japan's decades-old whale hunt in the Antarctic should stop.
Shadow chancellor John McDonnell has backed a free vote for MPs on the issue.
Savers into the new scheme can expect rates as high as 4 per cent from some banks.