Changes

When [[Sam]] starts drinking [[demon blood]] again, [[Anna Milton]] is able to detect it, saying he looks seems "different."Anna is able to recognize it, but doesn't say anything. ===[[7.23 Survival of the Fittest]]===[[Meg]] points out that all of the leviathans on Earth were inside Castiel, meaning that he can spot the real [[Dick Roman]] after he had a group of duplicates planted throughout [[SucroCorp]] headquarters as a cautionary measure. This proves to be key to identifying and killing Dick Roman.