It would be a toss up between fluoride and underarm antiperspirant. The use of antiperspirant is the # 1 cause of breast cancer and fluoride, an industrial waste poisonous product coming from the process of making aluminum has killed more people in the last 30 years than all our county’s killed in all our wars combined. The waste product coming by way of making trees into paper is dioxin. That may top my first two choices because dioxin may end up killing more by way of GMOs in corn and soy products including baby formula. All of these products must be removed from use in people and animals for the good health of our people and all the world’s creatures. Hemp is the replacement for all the above. So the next step is to take our country back and bring in Hemp for Victory to fight in our war to survive.