The reason cannabis tars do not cause cancer and tobacco tars do is because tobacco tars, unlike cannabis tars, have radioactivity in them.
Tobacco, unlike cannabis, is grown in radioactive soil and is fed through the leafy foliage with many different growth hormones.
This is why people who use tobacco show up dead @ the rate of 340,430,000 per year in amerikkka, and cannabis users arent.
Dr. Tashkin of UCLA, America's leading lung doctor reports these findings.
We (my generation) were told that by the year 2000 we would have hundreds of thousands of cannabis smokers lining up at the clinic with lung cancer due to our cannabis use. To this date? NONE. 40 years later.
It is my opinion that the biggest danger a cannabis user faces is to be locked up in a cage with violent criminals.
dai*ma