ANDREW NEIL: Our £3trillion national debt is a powder keg. One false move could ignite it. And I fear our new PM is out of his depth

This summer will go down in history as the first time ever that Britain's national debt topped £3trillion. It's a mind-boggling number, almost impossible to comprehend. This summer will go down in history as the first time ever that Britain's national debt topped £3trillion. It's a mind-boggling number, almost impossible to comprehend.