Poly(ethylene terephthalate) is made industrially by a well-established process. The polymeric product is purified & fabricated by known methods. P.E.T is widely used in the manufacture of bottles (for mineral water, Cola, Seven Up). Had there been any negative change in dealing with P.E.T, then the news shock would have reached anyone concerned with polymer chemistry including me. Mind you, science has to be taken from its sources & not from newspapers.