Mr Darling, who leads the pro-UK Better Together campaign, questioned the idea of a constitution, while referring to a recently leaked Scottish cabinet document which warned of "cost pressures" on public spending and volatility in oil revenue.
BBC: Scottish independence: Clash over Scottish constitution
In brief, the pro-UK side say, with apparent confidence, that it won't be built at BAE Systems' two Clyde yards, or Rosyth where the carriers are being put together, if Scotland votes to have its own navy and much else besides.
Hastily convened at the request of the new Bangladesh manager, Lodewijk de Kruif, up to 40 amateur and semi-pro players from the UK's Bangladeshi community have taken part in a trial match to find talent for the national side.
The Conservatives' coalition partners, the Liberal Democrats, have traditionally been the most pro-European of the major UK political parties and the coalition agreement drawn up after the 2010 general election states "we will ensure that the British government is a positive participant in the European Union".
In Britain in Europe's report, the pro-euro group argue that the UK will lose inward investment and political influence unless it signs up to the single currency.
Deputy PM Nick Clegg, whose Liberal Democrats are the most pro-European of the three biggest UK parties, has said the eurozone crisis should not be used as a justification to radically alter the UK's relationship with the European Union.
Lib Dem leader Nick Clegg - whose MPs are mostly pro-European - has warned against using the current crisis to fundamentally redraw the UK's relationship with Europe.
The Fresh Start group of Tory MPs has published a long list of powers they want repatriated back to the UK. A new pro-European grouping called the Centre of British Influence Through Europe has been established.
In his Financial Times article Mr Lou goes on to call for what look like special terms for any investment in the UK. He asks for "pro-investment policies to create an attractive environment" including "reducing taxes and offering bank loans at discounted rates", and says governments seeking external investment "should relax regulatory restrictions".
Speaking in Friday's debate, organised by the pro-EU lobby group Business for New Europe, she said the UK "needs to be at the heart of the EU", but also "needs to articulate a new relationship" with its EU partners.
BBC: EU debate: Conservative MEP deplores 'pitbull UK' image
Although Kensington and Chelsea is regarded as a safe Tory seat - Mr Clark held it with a majority of 9, 519 in 1997 - Mr Portillo faces competition for the right-of-centre vote from the Pro European Conservatives, the Referendum Party and the UK Independence Party among others.
Britain in Europe, the cross-party pro-Europe group, admitted the rejection of the constitution in the Netherlands made a UK referendum "extremely unlikely".
BBC: NEWS | UK | UK Politics | UK faces 'profound' EU questions
Swinney is pro-European, believing that it would be in Scotland's interests if the UK were to adopt the Euro currency at the earliest possible opportunity.
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