An Israeli peace activist who was kidnapped and held hostage for 53 days in Gaza said the horrifying experience shattered her longstanding belief that there could be peace between Palestinians and Israelis. “I don’t believe in peace, I don’t, sorry. I changed my mind,” Ada Sagi, who was captured by Hamas on Oct. 7, at the start of the Israel-Hamas war, told the BBC. For decades, Sagi, 75, lived in the Nir Oz kibbutz near the Israel-Gaza border and taught Israelis Arabic so that they...