 Complete the following phrase:  In 1966, after bouts of malaria, Hastings returned to England and became active in ecumenical dialogue through the preparatory commission of the Anglican-Roman Catholic International Commission. He was also commissioned by a number of Anglican dioceses in Africa to prepare a report on Christian and customary marriage. From 1972 to 1976 Hastings was on the staff of an ecumenical missionary school, the College of the Ascension in Selly Oak, Birmingham. In 1973 Hastings brought the massacres carried out by the Portuguese army during the 