Pests of the Garden and Small Farm" by Mary Louise Flint (See Appendix B) says, "Snails and slugs have many natural enemies, including ground beetles, pathogens, snakes and birds, but they are rarely effective enough by themselves to provide satisfactory control in the garden"`. An other predator worthwile mentioning is the turtle. More.
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.