Self induced EMP was my first thought when seeing the title. What is scary is they must know something in order to be spending money on this and moving forward unless some billionaire is scared of this part. I hope they get it tested, completed and have a backup in case something goes wrong.
From there, comet impacts will be marked off the list of prepping for! Yaaa!
Unless Billy Bob Thorton is heading the project! Just kidding. Love the movie btw.