Sir: Smoking is a horrific addiction. Once the person get used to it, it is very hard as if to breathe without it at all. The addicts are so hooked to it that they smoke at work place which is indeed a dangerous practice. We occasionally hear news that that particular plastic company got burned with people working in those departments. Intimately, the reason behind the disastrous incident would be cigarette. To sum up, the government has banned smoking at work place, transportation and all public places but, unfortunately, there is no implementation on the law. ASIF MURAD UMRANI Karachi