Probably the last thing you need, having lit up a Silk Cut at the end of another eight hours of cubicle-bound wage slavery, is some rubicund, preachy do-gooder accosting you on the street and sneering at your God-given right to smoke like a Victorian chimneystack. Yet such "direct action" is the latest weapon wielded by health Nazis campaigning to dictate how you can live your life. A trust in Ealing is employing people to......