Security screeners at Kennedy Airport caught a man trying to smuggle a knife onto a flight by plunging it into a full tub of mayonnaise, federal officials say.
A Transportation Security Administration spokeswoman says screeners stopped the man Tuesday as he arrived for a trip to Mexico City.
The hiding spot was poorly chosen. Jars of mayonnaise are also banned from carry-on luggage in the U.S.
The TSA considers mayo to be a liquid or gel. That means passengers can't bring it aboard unless the container holds less than 3.4 ounces.
TSA spokeswoman Lisa Farbstein says Port Authority Police confiscated both the knife and the mayonnaise. They still allowed the man to catch his plane.
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