Dark web dealers voluntarily ban deadly fentanyl

Major dark web drug suppliers have started to voluntarily ban the synthetic opioid fentanyl because it is too dangerous, the National Crime Agency has said.Fentanyl can be up to 100 times stronger than heroin and can easily cause accidental overdoses, particularly when mixed with heroin.Vince O’Brien, one of the NCA’s leads on drugs, told the Observer that dark web marketplace operators appeared to have made a commercial decision, because selling a drug that could lead to fatalities