If he is still eating and drinking, and acting normally I wouldn't worry. I have a dog who used to eat q-tips, whole and they would come out in her stool like that. Not fun but she was never harmed by it.
Popcorn and cranberries are both non-toxic to dogs and assuming the string was cotton or similar, there should be no issue with that either. Dogs tend to chew up random things as puppies (Underwear, trash, ect. ) and swallow some of it all.So chances are, he's eating cotton before.
As long as he didn't choke eating it, there should be no problem. Good Luck,Raeanne.
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.