Use Nichomachaen Ethics and Aristotle's discussions about relative values and, effectively, citizenry to an OpEd.
What is McChrystal arguing is the Social Value of PBS? How does HE try to persuade you about the basic values it creates in children? How might Aristotle's Ethics be seen in what McChrystal argues? What are its implications?
Do use parenthetical citations, and have a works cited entry for the OpEd. If you have trouble with the link, clear your cache and copy the title in to a search engine (I literally found this with the search "save pbs oped nyt" -- because I'm fancy like that).