CJG Now Thankfully Living In The North wrote:

But how many people would in a real life
situation have the guts to order the death of 100's without being 100%
that it will save more lives that it loses.
And also if it was your
wife/girlfriend/husband/boyfriend/child/parent/realtive on the train
or plane. Would you be so keen to see them die without being 100%
their life would save a lot more?

Hence the proverbial "loneliness of command" and readiness of many to
crticise but only with hindsight.