I've done only 1 video on 1 hub so far. The way I did it was to use the video capsule and paste in the link from YouTube. Have you tried that method yet?(I know that when I've tried to do a couple of things in html, it tells me it's not allowed because only certain commands are allowed.).
I have noticed recently that the embed code from Utube just doesn't work when adding a new video on hubpages but old ones continue to work ok. I assume that the code to extract the video content must have changed. The solution for me was to simply take the webpage address from utube and enter that instead of the embed code.It woks just fine then.
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.