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Son of missing Israeli peace activist: 'Vengeance is not a strategy'
Yonatan Zeigen’s mother, Vivian Silver, is likely among those kidnapped by Hamas from her Kibbutz. A lifelong peace activist, Silver would help civilian cancer patients in Gaza cross the border to get treatment in Israel. Ali Velshi spoke with Zeigen, who believes his mother would continue to advocate for peace. He says, "Vengeance is not a strategy."