The bombings of Hiroshima and Nagasaki 60 years ago were stunning and sobering events. They brought World War II to an end, and everyone was thankful for that. Not too many of us stopped to think about the full implications of those bombs for our future. We were too busy celebrating the end of that terrible war.The survivors of Hiroshima and Nagasaki, and the hibakusha have continually warned, Nuclear weapons and human beings cannot coexist. In the end, I believe this is the most important lesson of Hiroshima. We must eliminate nuclear weapons before they eliminate us.The best security, perhaps the only security, against nuclear weapons being used again, or getting into the hands of terrorists, is to eliminate them. Most of the people of the world already know this. Now it is up to the worlds people to impress the urgency of this situation upon their governments. We must act now. The future depends upon us. Anything less would be to abandon our responsibility to future generations.