Although merchants weren't exactly happy with the idea of a credit card that could be used everywhere â fewer people would be using their individual store credit cards â McNamara's cards caught on quick with customers, expanding to 20,000 users in the first year.
Smoking can cause cancer and then block your body from fighting it: 1  Poisons in cigarette smoke can weaken the bodyâs immune system, making it harder to kill cancer cells. 2  Poisons in tobacco smoke can damage or change a cell's DNA.
In the 1980s, a new wave of lawsuits emerged. In the landmark case of that time, Cipollone v. Liggett, the plaintiff and her family alleged that cigarette manufacturers knew -- but did not warn consumers -- that smoking caused lung cancer and that cigarettes were addictive.