Another thing that says is that apparently some universities have made clinical studies about long term damage if using marihuana, and there are none. Contrary to the addiction that causes the alcohol, and tobacco. Plus the severe conditions that produce the legal drugs. Some of the cons that the article talks about is that if the governement agrees to legalize the cannabis, they are teaching the children that it is okay to do drugs. Another thing is that the use of this "soft drug" as the author says can lead to the use of the "hard ones", like cocaine, heroine, etc.
From what I wrote earlier it is a resumed mini article of the one that I've found on the internet. I think this particular theme is a very strong, and important one because of the popularity of the use of the marihuana. My side on this subject is that they legalize it because people are still using it anyway, and if various studies say that the criminality will ease because the people will not have to go the hard way to find it nor sell it. Also people that smoke marihuana are happy, and if you feel like that, it is most unlikely to commit a crime.
When I went to Amsterdam to the famous "Red Zone", where smoking pot, and prostitution is legal, of course the majority of people were high, and also I learned that the criminality is very low. People would walk at night without the fear of being assaulted. I strongly disagree that the legalization will cause a historic difference, because people will still be using it like now, the only difference is that they will do it in public.
Another subject that I think would be very important to discuss is the economic one, like creating new jobs; looking for different ways to find a new source of energy, not meddling in other countries businesses, but worrying more from the ones we have now.