I take Klonopin, and I don't think I am addicted to it. From my understanding, it is the least addictive of the anti-anxiety drugs. My psychiatrist sees me every month and monitors my meds. All of this helps me I think to stay safe.
You can become addicted to anything, but I feel pretty safe about the Klonopin. I have not had to have it increased or anything like that that would be a warning sign to me.