An initiative for removing nuclear weapons from our world. They are collection online signatures and I gave them mine, I wish you will give them yours (http://www.globalzero.org/)
I signed on the following words
”We, the undersigned, believe that to protect our children, our grandchildren and our civilization from the threat of nuclear catastrophe, we must eliminate all nuclear weapons globally. We therefore commit to working for a legally binding verifiable agreement, including all nations, to eliminate nuclear weapons by a date certain.”
But If we removed all the nuclear weapons, and some aliens came from the space with dangerous and fatal weapons, what can we do? :D no aliens are there, just we should remove those nuclear weapons from our world.