A NATIONAL debt clock began a tour of the country yesterday, in a bid to put the disastrous state of the public finances in the spotlight. The 23-foot-long clock has been commissioned by pressure group the Taxpayers’ Alliance and has a figure that is ticking up at a rate of more than £5,000 a second. The national debt increased by £14.4m during Labour’s manifesto launch, the Taxpayers’ Alliance said.