As to the extent that they may be used over and above this, we should certainly be careful on one point, and that is in believing that we have a one hundred percent guarantee, and that we can give a one hundred percent guarantee that we can distinguish between meat which may pose a risk and that which does not.
Sin embargo, debemos ser prudentes con respecto al alcance de las mismas. No podemos creer que nos proporcionen una seguridad absoluta ni que nos permitan distinguir entre la carne que puede implicar cierto riesgo y la carne que no implica riesgo alguno.