Im not an expert but in my experience its really all about training. Anytime you have a dog around a young child or baby you need to always be watching very carefully. I wouldn't leave the dog around the baby unsupervised.As for as anything aggressive I wouldn't worry about that.
It sounds like your puppy is just trying to engage your son or daughter in play like they would engage another puppy. My 2 year old mix does the same thing with my 3 year old cousin.As far as training goes, I would go to the dog whisperer ceaser millans website. The website is really useful and might have the answer to your training question.
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.