The stickers also had the words, "Stop Funding Israeli Terrorism." "I have 16 images in my inbox, and I know there are more," said Rabbi Jason Rubenstein, the executive director of Harvard Hillel.

An out-of-town visitor wandered through town putting up stickers of swastikas Tuesday until a local, 21 year-old Noah Mohan, confronted him. A video of the encounter has spread on social media.

"Help yourself," he seems to say quietly, holding out his stack of stickers. After taking one, the filmer asks what the man's thoughts are on using the swastika in the imagery.