9.5.5 Matter Inciting Violence Any matter of a character tending to incite arson, murder, assassination, treason, insurrection, or forcible resistance to any law of the United States, or containing any threat to take the life of, or to inflict harm upon, the President of the United States is nonmailable (18 USC 1461, 1717)
The reason behind such a drastic increase at once is to encourage people to take that next step in quitting
It is a bit of a vibe, to be honest
Research findings indicated that those large graphic warnings on the cigarette packages were effective in the means of increasing their health knowledge, but also providing cessation benefits. While Lung Saskatchewan and other groups are happy with the labels, they acknowledge the fight is not over yet
Sommer, Genve (Mdecine de famille)