By Andy Silvester Politicians should be wary of the damage they could do to our regulators’ reputation for independence if they move forward with call-in powers Independence is a funny old thing. At a national level, it can be won and lost in the blink of an eye. At more prosaic levels, building up independence – and a reputation for independence – can take much longer. Such is the case with our financial institutions, be they regulator or central bank. Even the whiff of the removal of the Bank of England’s formal independence, as floated by Liz Truss in her leadership campaign over the summer…