Mexican authorities have discovered a lab containing chemicals and equipment used to make methamphetamine in the southern state of Oaxaca. Police seized large distilleries, chemicals, dryers, pots, tubs and large gas tanks. The substances included caustic soda, acids and mercury, all carcinogenic substances used to make crystal meth. The drug is smuggled across the border with the U.S. where it is sold in crystal or powder form. No arrests have been made. teleSUR