Can a hub be shared back again (without being republished)?

Yes, at the bottom of the hub you will see several buttons: vote up (green), vote down (red), share (black), print, flag.

Click on the share button and several options will present itself with the first being "share with followers", choose this(click the link). This will allow all your followers to see the hub in their feed.

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.