A crushed chest is a very serious injury and only paramedics should attempt CPR on someone with that type of chest trauma.
To do chest compressions would be extremely dangerous. Even with good samaritan laws, in such a scenario, the average person would most likely be sued by the victim's family for worsening or causing injury.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.