NORTH DAKOTA (KXNET) — Smoking rates among teenagers are getting to be the lowest in almost three decades, the CDC says, and while that's generally the case, there are still teens in some states that are smoking and vaping. In a study conducted by Yocan Vaporizer, they used data for every state on high school tobacco usage, and found the states that had the highest rate of teen smoking. The data came from the American Lung Association, which was…