From the Superdome’s website…
https://www.caesarssuperdome.com/plan-your-visit/a-z-guide
Anyone want to guess about which rule(s) a flag of that size violates?
Was a **** move for security to deface it, however I’d wager they were approached multiple times about putting it away and didn’t listen before it was confiscated.
It’s wonderful they decided to make a game, but spending a lot of money on flights, hotel rooms, and game tickets traveling as an international fan doesn’t grant anyone additional liberties to ruin neighboring fans gameday experiences as well. I know I wouldn’t want to be sitting (or even standing) behind that flag when it’s being held up.