Disappointed in Balsalmic Vinegar

So today I made extremely tasty, although time consuming to make, Rosemary Tofu Balls from Vive le Vegan!. I was preparing the sauce and Iooked at my balsalmic vinegar to see if it had to be refrigerated. It had a warning that said it contained lead. I reread it. Yep, lead. So I did some research online. Here is a good article on it.
http://tangergreen.com/proposition-65-lead-in-red-wine-and-balsamic-vinegar/