evidence: Belfast's peace walls, built in the Troubles to tamp sectarian violence, were slated to be torn down in 2023. But locals are protesting. Many want them preserved as war relics & public art. Twenty-five years after the Good Friday peace agreement in Northern Ireland, Belfast still bears the scars of decades of sectarian violence. So-called peace walls are barriers built to keep Catholic and Protestant communities apart. NPR's Fatima Al-Kassab reports from the still-divided city. [...] AL-KASSAB: Paul Crawford's father was killed in the conflict known as the Troubles. He campaigns for victims' rights, and he lives in the predominantly Catholic west Belfast. He wants the walls to stay put as a sort of war memorial.