Marijuana and statistics.

1.  10%, apparently, of marijuana users become addicts. That's with it being illegal. 

2.  15% of alcohol consumers become addicted.

3.  Worst reason for legalizing marijuana.  "Well, surely if alcohol is legal with all its problems marijuana should be."  No, that'd be a really good reason to make alcohol illegal, but it's a really bad one to make marijuana legal.  Just because something might be no more destructive than something destructive, doesn't amount to a supportable argument to make the second destructive thing legal.

4.  Most missed point in item #3.  Alcohol has such a long association with human beings that the best evidence is that the current population of humans, for the most part, has actually evolved to be able to consume it.  Alcohol, after all, is a poison.  Second most missed point in item #3 is that at the low dosages that were consumed per unit weight, prior to the invention of distilling (and keeping in mined that in ancient times the wine, one of the two most common alcoholic beverages, was routinely very much watered down), was not and is not generally consumed to the point of intoxication.  Marijuana for recreational use is only consumed to the point of intoxication.

5.  Scariest marijuana fact discussed since Colorado legalized it.  Those using it in their teens experience a 6 to 10 point drop in their IQs as an adult.