Now there's a study out of Taiwan suggesting that the long term use of benzo's increases the risk of some types of cancer. Klonopin was found to be the most dangerous. http://www.madinamerica.com/2016/03/is-long-term-use-of-benzodiazepine-a-risk-for-cancer/
Benzos are horrid in so many ways. The scariest link is dementia and Alzheimer's. The bottom line is that use of benzos carries a HUGE risk. One I'm not willing to take.