The UIImage 's are not being deallocated when you set the UIImageView 's property to nil because the array is still holding a reference to them. As for the memory growth, it may be something else that is being allocated. I'd suggest taking a look with Instrument's object allocation instrument to track down what exactly is growing as you scroll.
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.