Thus allowing creator David Simon and his magnificent crew to wrap up the series next season with its final theme: the role of the mass media in ignoring or perpetuating stereotypes about the drug trade — or, as he told The Philadelphia Inquirer last week, ''how this world exists while everybody is busy... watching something else.'' Meanwhile, you need to see this week's upcoming episode, as young Michael (Tristan Wilds) is finding it harder to deal with his mother's drug addiction and to protect his younger brother.