This Nightline features two reports from Kosovo which explore the difficulty of rebuilding civil life and Serb and Kosovar Albanian coexistence there, after years of Serbian oppression, their most recent assault on the ethnic Albanians and NATO's air-strikes against the Serbs. Since the second week of June, 1999, when the Kosovar Albanians returned to their homes, there have been many indcidents of revenge against the local Serbs and Romas (Gypsies). - Gillian Findlay reports on ethnic Albanians taking revenge against the Serbs and how this affects Kosovo's multiethnic firemen brigade. Two ethnic Albanians, Serb firemen, British firemen, and a British peacekeeping officer, comment on incidents of revenge. Footage of Kosovo buildings set on fire, two British firemen at work, and ravaged homes featured. - Dave Marash reports on Father Sava, Serbian Orthodox monk who made his Kosovo monastery, Visoki Decani, a safe haven for both Serb and Albanian refugees. In an interview with Marash, Father Sava expresses fears that revenge will destroy Kosovo, talks about protecting Serb refugees from the neighboring villages, helping Albanians with food and medicine, and sheltering Kosovo Gypsies to protect them from Kosovar Albanian revenge. Father Sava also discusses destruction of the Holy Trinity Monastery, outside of Suva Reka, by Kosovar Albanians. Sister Anestesija, a senior nun and a hard-line Serb nationalist, discusses destruction of Debic monastery; an imam discusses destruction of a mosque in Suva Reka. Footage of a destruction of Kosovo's towns Pec and Suva Reka and defacement of a Serbian Orthodox monastery, two large homes set ablaze by Kosovar Albanians on a hillside of Prishtina, featured. - Ted Koppel talks with Dave Marash on his views on how the Kosovo crisis can be resolved, the future of Milosevic's regime, how the Americans are viewed in Kosovo now, on an international administration of Kosovo, and on the regions future.