October 27th marked a year since the shooting at the Tree of Life synagogue in Pittsburgh, which was the deadliest antisemitic act committed in U.S. history. We have insight into the shooter’s ideological worldview because he frequently posted on white supremacist social media sites. He asserted that George Soros, a Jewish billionaire, is behind a conspiracy to control international politics and the global economy. For Jews and those sensitive to the history of antisemitism, this imagery evokes a frightening repetition of antisemitic accusations going back to The Protocols of the Elders of Zion.