Cracker Jack Kitniyos Controversy

The following story takes place in an unincorporated community named Cracker Jack, located in Carroll Township, Washington County, Pennsylvania.
It’s the afternoon of Erev Pesach. The chametz has been burned, the sale of chametz completed, and the aroma of brisket fills the air.
Meanwhile, Boruch has just heard the good news — his dear friend Shimon is in town for Pesach, visiting his in-laws. Delighted, Boruch sets out to greet him.
When Shimon opens the door, he’s holding a snack that looks suspiciously like...Cracker Jack. Worse still — he’s munching away!
Boruch freezes. His eyes widen. His mouth drops open.
And then, in a burst of pure friendship, he yells: “Sheigetz! Chametz!”
Shimon (confused): Huh?
Boruch: You’re eating popcorn — which is kitniyos! Don’t play innocent! Rebbe Yochanan ben Nuri, a Tanna, already ruled that rice — the most famous kind of kitniyos — is treated like grain! It can even become chametz, and you could make matzah from it! (Pesachim 35a).