Characters
Police say the fake Pope can be easily recognized by his high-top sneakers and incredibly foul mouth.
— Kent Brockman ‧ The Simpsons

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
A news-style report gives police advice for spotting a fake Pope: look for high-top sneakers and an astonishingly foul mouth. The humour comes from the contrast between papal dignity and casual footwear and swearing, presented as if these were ordinary identifying details.
Context reviewed