It's something that protects us from harm, from hucksters, from people that would try to hoodwink us into a clinical study that we don't understand, or that we don't agree to.
Es algo que nos protege a veces del daño, de los charlatanes, de gente que trataría de embaucarnos en un estudio clínico que no entendemos, o con el que no estamos de acuerdo.