This brings back a skepticism that has gone away recently, that superweeds and superpests could spread around the world, from biotechnology, that literally could destroy the world's food supply in very short order.
Isto faz renascer um ceticismo que já tinha desaparecido, que as super-ervas e as super-pragas se podem propagar pelo mundo, pela biotecnologia, e podem destruir o fornecimento mundial de alimentos num curto espaço de tempo.