Tobacco Research
1930s 
Scholars started noting the parallel rise in cigarette consumption and lung cancer.
1939
Franz Hermann Müller at Cologne Hospital in Germany, published the first study of the strong link between smoking and lung cancer.
1950
Drs Wynder and Graham, of Washington University, USA, published a study showing that of 650 men with lung cancer, 95% had been smoking for 25 years of more.
1951
The first large-scale study of the relationship between smoking and lung cancer was carried out by Dr Richard Doll and Professor Austin Bradford Hill and published in the British Medical Journal.
1953
Dr Ernst L Wynder landmark report finds that painting cigarette tar on the backs of mice creates tumors. This is the first biological link between smoking and cancer.
1954
The Reader's Digest published an article entitled "The cigarette controversy"
documenting the evidence on the association between smoking and lung cancer.
1962
The first Royal College of Physicians (RCP) report, "Smoking and Health", was published.
1964
The US Surgeon General produced his first report on "Smoking and Health".
1967
The first World Conference on Smoking and Health was held in New York.
US Surgeon General releases The Health Consequences of Smoking, A Public Health Service Review
1968
US Surgeon General releases The Health Consequences of Smoking, 1968 Supplement to the 1967 Public Health Service Review.
1969
US Surgeon General published The Health Consequences of Smoking, 1969 Supplement to the 1967 Public Health Service Review 1968.
1970
The Director-General of the World Health Organisation (WHO) presented a report to the 23rd World Health Assembly on "The limitation of smoking".
US Surgeon General releases The Health Consequences of Smoking
1971
Publication of the second RCP report, "Smoking and Health Now"
ASH was developed under the RCP
1973
Independent Scientific Committee on Smoking and Health (ISCSH) was developed in the UK.
1977
The third report of the RCP, "Smoking or Health", was published.
From
1967 to 2014 the US Surgeon General published a "different" The Health Consequences of Smoking almost every year.
My Point is

In the 1930s they thought Smoking causes Cancer,
by the 1960s they knew, (finally admitted) smoking causes cancer.
by the 1970s they knew smoking causes other problems like heart disease.
We still researched Smoking through the 1980s, 1990s, 2000s, and now 2010s
Over 80 years

What the

are we researching smoking for?
Millions of dollars every year spent on a research that tells us what, Smoking causes Cancer?
Over 80 years and Billions spent on so called research and they still think that nicotine is the problem not them other hundreds of chemicals that are added.
