From NBC:

Back behind the towering corn is a message that can only be seen from the air.

It is one of the most infamous symbols of hate — a swastika — cut into acres of cornfields in Washington Township, Mercer County. …

The case is being investigated by the Washington Township Police Department, the Mercer County Prosecutor’s Office, and the New Jersey State Division of Criminal Justice.

Anyone with information should call Washington Township police at 609-259-3900 … so they can set the suspect up with a speaking engagement at Columbia University.

OK, so I added that last bit.