In 1982, in response to news reports of massacres committed by a Lebanese Phalangist militia with the complicity of the IDF during Israel's 1982 invasion of Lebanon, Epstein developed a different perspective on the Arab-Israeli conflict; she began to express opposition to Israel's military policies [REF].
In 2001, she founded a St. Louis chapter of the Women in Black, an anti-war group that originally focused on Israel's occupation.