In some applications to human beings, the precautionary principle seems to raise specific ethical concerns. For instance, it has been used to exclude men who have sexual relations with men from donating blood on the basis of a higher HIV prevalence in this group. Does not the precautionary...

In some applications to human beings, the precautionary principle seems to raise specific ethical concerns. For instance, it has been used to exclude men who have sexual relations with men from donating blood on the basis of a higher HIV prevalence in this group. Does not the precautionary...

The precautionary principle has been an important aspect of regulatory delivery for nearly four decades. Now widely applied and with a global reach, the principle is often invoked whenever the scientific evidence surrounding the safety of a given technology is not conclusive. It is often applied...