Cannabis: An Infographic visualising the cost of the War on Drugs. It could be argued that the war on drugs is the longest and most expensive war ever fought by the United States. Each and every year, billions of dollars are spent, thousands of arrests are made and countless lives are lost in the name of keeping illegal drugs off the streets. It’s no secret that it’s a war the government is not winning. But is it a war they should even bother fighting? You might learn more from this Infographic by our friends at Medical Coding Certification.