get lunesta for a co-pay as low as zero dollars at lunesta.com discover a restful lunesta night. welcome back. now a warning for all parents about a dangerous new drug teens are using. this one neither of us had even heard about. it's called synthetic marijuana. >> it's especially scary here how easy it is to make the drug. its ingredients are legal in 37 states and very easy to find. pierre thomas reports. >> reporter: 20-year-old paul hallsteader's life fell apart after he became addicted to a powerful new substance racing through the suburbs of minneapolis. >> once you use it once you have no control over how much you're going to use. >> reporter: most parents would never suspect this new high is perfectly legal. something they may have even seen on their teenager's dresser.