2. How many casualties (dead and injured) are we willing to accept to ensure a rapid logistics system? Probably shouldn't have read the other posts before answering this one because the speed limit example is stuck in my head: in which case, we'll accept whatever the number is because as far as I can tell, no one wants to drive more slowly.
3. How many people out of economy to keep economy robust? Don't have a definitive answer: would search for the best economic year in the past 10 years (so the data isn't totally outdated) and say whatever the percentage was then.
4. What number of deaths is actually statistically significant to the United States?
I have two answers: one, that every death, especially of someone close to you or someone famous, like JFK, diminishes us but...
two, there isn't a number high enough that could possibly happen save nuclear disaster that would really be statistically significant.
5. I've chosen two challenges that are a bit different - doesn't make them any "righter" than other choices:
a) the challenge of educating the electorate to take their ideas and convictions seriously to the end of finding politicians that can represent said views and convictions and then voting for them
b) the Baby Boomers coming into their retirement years - will be a huge challenge, imo.
Thanks Tom, fascinating questions.
Janet