Earlier this week in his State of the Union address President Obama made some observations on climate change so brimming with falsehoods I'm surprised his nose didn't fall off. It really doesn't matter where he himself was deliberately lying or whether he was merely lending the gravitas of his office to the deliberate lies of others. The point is that the President of the USA has access to any number of fact checkers and advisers and if he stands up and addresses the nation with a farrago of complete untruths then the buck stops with him. This dissembling and mendacity...