The everyman who exposed tainted toothpaste

NYT -  Eduardo Arias did something that would reverberate across six continents. He read the label on a 59-cent tube of toothpaste:

... two words that had been overlooked by government inspectors and health authorities in dozens of countries: diethylene glycol, the same sweet-tasting, poisonous ingredient in antifreeze that had been mixed into cold syrup here, killing or disabling at least 138 Panamanians last year.