Some hosts simply don't respond to broadcast pings (for example, Windows is configured by default this way).
Because in example some implementations work by sending the broadcast to the preferred interface, not all of them. You need a relay to send to all interfaces. You may consider reading the RFC 919.
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.