Drugs like synthetic marijuana are still making their way into the United States with impunity because chemists continue to alter the drugs’ chemical compounds slightly to get around the bans.
Drug Enforcement Administration Special Agent Doug Coleman saysÂ US Customs authorities cannot stop imports of compounds that are still legal.
â€œItâ€™s like whack a mole,â€ he told CBS News. â€œThey pop their head up, we hit them, they go down and then they pop their head up in another spot. Itâ€™s always a cat-and-mouse game. This is just a more advanced type of cat-and-mouse because now weâ€™ve got chemists manufacturing synthetic drugs as opposed to cartel members trafficking heroin, or coke, or methamphetamine.â€
China is the main source of these drugs.