Tepperman acknowledges President Obama’s and others’ concerns regarding the danger of nuclear weapons and the president’s efforts to eliminate nuclear weapons. Tepperman counters the assumption that nuclear weapons will be a danger to the world by stating that they will be a constraint for future wars, and he also points out that a nuclear free world is impossible and maybe unwanted. Tepperman proves his idea from observations that shows nuclear weapons haven’t been used since World War II and that war between two states that possess them is unprecedented. The reason, he argues, is that nuclear weapons will substantially increase the cost of war, which will deter nuclear powers from clashing with each other. He provides multiple examples of