While AIDS was neither the initial nor the sole factor, it had a profound impact on the development of school-based sex education policy and practice in 1980s Ireland. Attempts to introduce a national programme of sex education on foot of increasing rates of crisis pregnancy pre-date the AIDS era, but these efforts had been vociferously opposed by conservative Catholic interests. The fear generated by AIDS prompted a shift in what political theorist, John Kingdon terms, the 'national mood' that? coupled with the singular determination of then Minister for Education, Mary O'Rourke, who faced down intense opposition from conservative groups and the Catholic Bishops, created the conditions needed to introduce the "AIDS Education Resource" -- a forerunner to the Relationships and Sexuality Education programme -- in post-primary schools throughout Ireland in October 1990.