1.Which of the following substance/drug in your view has the most negative impact on the body, mind and society today?

List of substances: alcohol, barbiturates, and tranquilizers, Narcotics (opium derivatives, e.g., morphine and codeine), semi- synthetic (e.g., heroin), or synthetic (e.g., methadone, oxycodone [OxyContin], and pethidine [Demerol]

2.) On what basis do you select this particular substance/ drug as public enemy number 1 ?