If Wigand can testify before court, it would become part of the public record, give him legal protection and free him from the confidentiality agreement. Wigand finds a bullet in his letterbox. People seem to sneak around the house. His wife cracks under the pressure and although Bergman organizes three men for the family's protection, she moves out with the children and gets a divorce. But Wigand stands firm and stays by his initial statement that his boss, Landefur, and with him many others in similar positions, perjured themselves, when they testified in court that nicotine is not addictive.
Tobacco is a delivery device for nicotine.
You light it up and get your fix. Wigand also tells why he was forced to leave his company. They used coumarin in cigarettes. As Wigand told them the substance causes cancer, they ignored his advice because without coumarin, they said, sales would drop and therefore they deliberately ignored health issues. In the end, CBS was not ready to air the interview with Wigand because Brown and Williamson threatened them with a lawsuit that could jeopardize the sale of CBS to Westinghouse.