I don't care what drugs people, to each their own, and I agree with allowing people the decision of what they want to do by weighing the pros and cons. With that said, you are comparing weed closely with cocaine. What the fuck? You have to be very misconceived about weed, even comparing it to alcohol, which a lot of people unfortunately do, is a pretty huge leap.
Just to clarify, the only harm weed will do to your body is if you combust it, it can cause smoker's cough and phlegm. It has never been proven to cause even cancer in your lungs. If eaten or vaped, marijuana has no proven harmful side effects (unless you consider increased appetite harmful). Studies show weed consumed daily over decades can even decrease the risk of cancer.
Sorry, just wanted to clarify that since you were trying to compare weed to cocaine, alcohol, and steroids.
In 2013 TCDD concluded three contracts with Siemens for the acquisition of 17 units in total (1 unit for the first, 6 for the second and 10 for the last contract)   with a combined value of €685 million.  Furthermore, Siemens would provide 7 years of maintenance and cleaning, and also provide a simulator .  The Velaros are to be deployed on the Turkish high-speed railway network . The first Siemens Velaro (the only Velaro D type train of TCDD, code numbered HT80001) entered service on 23 May 2015 between Ankara-Konya.    The second Velaro of TCDD (which is the first Velaro TR type train, with the code number HT80101) arrived in Ankara on 17 February 2016.