1.   For California to promote smoking marijuana while spending millions to combat tobacco smoking is contradictory.

2.   It is likely that states also would be given financial incentives to cooperate in combating underage smoking.

3.   New York lags woefully behind states like California and Massachusetts in combating smoking, the leading preventable cause of death and disease.

4.   Nevertheless, some Asian countries like Singapore have successfully combated smoking, Mackay said.