Just in case, DFS is much more suitable for the task, even more so in directed graphs. If you already knew that, ignore this.
You probably meant DFS, which is far more common in cycle detection, so I'll assume you made that mistake. Changing to BFS is fairly easy though as the core idea remains the same.
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.