7. Dear Editor: Smoking is one of the biggest threats to our health, but we aren’t doing enough to protect non-smokers. In offices and other workplaces, employees are forced to breathe pollution from colleagues who smoke. It’s difficult to find a restaurant where diners can escape from people’s cigarettes. On an inter-city bus or train, you might be forced to inhale dangerous smoke for up to tem hours. We need laws to make all our public places smoke-free. Sincerely, Adrian Smith