From innocuous scenarios to the horrifying: what trade-offs?
The scenarios used by Pew were relatively innocuous. What if there was reason to fear the setting off of a smuggled bomb that scatters radioactive debris, or worse, an actual atomic bomb? Such fears remain a long shot and hopefully enough protections are in place. But no one knows how much privacy we may have to sacrifice in the future to deter the world's maniacs. Ben Carson probably didn't win many votes in the Republican debate by rambling on about an electromagnetic pulse (from an atomic explosion), but I sort of get his point. https://www.washingtonpost.com/news/the-fix/wp/2016/01/14/winners-and-losers-from-the-sixth-republican-presidential-debate/?wpisrc=nl_draw