By Matt Chorley, Mailonline Political Editor PUBLISHED: 08:23 EST, 13 May 2013 | UPDATED: 08:44 EST, 13 May 2013 Free healthcare could become a thing of the past if Scotland becomes an independent nation, Gordon Brown warned today. The former Prime Minister said the whole of the UK benefits from ‘pooling resources’, and the loss of Scotland could undermine the NHS, pensions and the benefits. Launching a Labour campaign against independence, he said he was returning to the political front line after three years ‘with time on my hands’. Former Labour Prime Minister Gordon Brown warned public services like the NHS and pensions across the UK depend on 'pooling resources'
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Former Prime Minister says pensions, benefits and healthcare depend on 'pooling resources'
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All four countries in the UK benefit from the Union, ex-Labour leader adds
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Launches United With Labour campaign against independence in Glasgow
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Jokes that he has had 'time on my hands' since being booted out by voters
‘We know people have contributed their money in taxation and national insurance to a pension that has been guaranteed by the @placeholder as a result of their contributions.
‘Would you say you were in a better position with a UK pension, guaranteed because of your national insurance contributions over the years, than with the promise but no guarantee of a @placeholder administration that has already said they are setting up a working party to consider the affordability of pensions?’