Manifesting in Jews and Christians alike, Jerusalem syndrome is a psychological phenomenon in which individuals experience religiously themed delusions while visiting Jerusalem. Seen as early as the Middle Ages, it is often marked by a desire to tour the city alone, an obsession with being clean, and the need to don a white gown. It sometimes culminates in the public delivery of a sermon. For what occasion in recent history did authorities fear a major spike in cases of Jerusalem syndrome? Discuss
Source: The Free Dictionary