BBC NewsGood Friday Agreement: Warning of 'threat' to peace dealBBC NewsFive former Northern Ireland secretaries have signed a letter warning a hard border in Ireland could threaten the Good Friday Agreement. The letter was published in the Times on the 20th anniversary of the deal. It was organised by pro-European ...Reflecting on 20 Years of Peace on the 20th anniversary of the AgreementIrishCentralGood Friday Agreement: 20 years on, Northern Ireland remains divided – but a united Ireland is now a real possibilityThe IndependentYoung people didn't see the horrors.