Let us not turn away in the face of unattainable limits. Instead, we should push those limits and make our best attempt to imagine the unthinkable and prepare accordingly. That being said, there is no free lunch. How much time and money ought the U.S. government allocate to wargaming worst cases, or on a smaller scale, ought you devote to reading this book? The first question is too large for this review, but I will say that What Is The Worst That Could Happen? was well worth my $37.95 and an afternoon’s time, and I am confident that any reader of The Bridge will feel the same.