Last week, the Chronicle asked its readers in an electronic poll the following question: “Are you concerned about the potential for nuclear weapons to be used anywhere in the world in the next year?” Of the 202 people who responded, 49% said, “Very concerned” and 39% said “Somewhat concerned.” Just 11% said they were not concerned. Forty-one people submitted comments. A few follow. With nuclear armed tyrants like Putin and Kim Jong-un, there is reason for concern.