I've edited a number of science fiction projects over the years. One story idea that comes up now and then is aliens could kill us all without ever even revealing themselves. All they'd need to do is create a highly virulent virus and let it spread around the world--killing the people off. In light of current events, I'm not so sure that's a far fetched story. That's often the case, that science fiction is only a little ways ahead of reality. Well, some alien disease is not a new idea. The 1971 story Andromeda Strain has been there and done that.I thought I might get a copy and watch it.