is the war on drugs working?

Vo
I personally feel like the war on drugs is very narrow minded now that we have more information about addiction and disease. 
   
It also reminds me a lot of prohibition where the black market still makes drugs very accessible and profitable while evading taxes and regulations of public safety. 
    
What are your thoughts? If you don't agree, please back your perspective up with studies and research to help me understand the opposite view.