Washington Post: “…The Oct. 7 Hamas terrorist attack is among the most well-documented in history. A crush of evidence from smartphone cameras and GoPros captured Hamas’s breach of the border — a strike Israel says left about 1,200 dead, the most deadly onslaught in the country’s history. But Oct. 7 denial is spreading. A small but growing group denies the basic facts of the attacks, pushing a spectrum of falsehoods and misleading narratives that minimize the violence or dispute its origins. Some argue the ambush was staged by the Israeli military to justify an invasion of Gaza. Others say that some 240 hostages Hamas took into Gaza were actually kidnapped by Israel. Some contend the United States is behind the plot. These untrue and misleading narratives have been seeded on social media, where hashtags linking Israel to “false flag” — a staged event that casts blame on another party — tripled on services including TikTok, Reddit and 4chan in the weeks after the attacks, according to the Network Contagion Research Institute, a nonprofit tracking disinformation. It’s bleeding into the real world: Demonstrators have shouted the claim at anti-Israel protests and have used it to justify removing posters of hostages in cities like London and Chicago. At a November city council meeting in Oakland, Calif., multiple residents disputed the veracity of the attack….The phenomenon is worrisome to Jewish leaders and researchers who see ties to Holocaust denial, the attempt to undermine the genocide that killed 6 million Jews during World War II, a belief that has surged online. They also see parallels to many pernicious, internet-driven conspiracy theories with antisemitic tentacles, including the QAnon conspiracy theory, which alleges “globalists” — a reference, some say, to Jews — used the pandemic to control the world, and disinformation about the 9/11 terrorist attack, which some fringe groups falsely argue was perpetrated by the Israeli intelligence agency Mossad…”