E-cigarettes

Here is a sample, exciting topic: Should the manufacturer of the electronic cigarettes, which intended to sell products for profits to reduce smokers of "traditional cigarettes" be liable for the recent illness and issues surrounding their products?
There is much in the recent news about this. Things you may consider: Should there be ban on the menthol e-cigarettes or on all flavors? Were they marketing to the correct audience? Is there enough to establish a chain of custody that the e-cigarette has not been tampered or changed by the introduction of other products, which might have caused individuals to suffer an illness? Could it be something unrelated causing these illnesses? What do you think?