Is smoking the worst sin?

With the amount of anti-smoking signs in schools, the ire directed at "big tobacco," and the continuous calls for banning smoking in public buildings and even private bars, etc. one would think that America is smoking itself into oblivion. Yet there are many nations whose 15-year-olds (minors!) and older respond smoking at least once a day at a higher percentage than the USA - including these European nations:

Switzerland, Belgium, Italy, Germany, France, U.K., Spain, Austria, Russia, and Greece.

I think it is time for America to put the smoking issue into perspective and focus on more pressing issues.