Chancellor George Osborne has said plans for enhanced powers for the Scottish Parliament offers Scots "the best of both worlds".
The leaders of the three main Westminster parties have signed a joint declaration in favour of "further strengthening" of Holyrood's powers if there is a 'No' vote in September's independence referendum.
Mr Osborne told Radio 4's Today programme: "That is the best of both worlds - that is, Scotland part of the UK with all the economic benefits and broader benefits that brings. But also Scotland in charge of the things that matter to Scots."
The first debate between Alistair Darling and Alex Salmond had barely finished when their respective teams went into battle.
Campaign rivals Alex Salmond and Alistair Darling both traded blows in a surprisingly feisty televised debate on Scottish independence.
Alistair Darling is getting 'feisty' during the STV Debate.