Prime Minister Brian Mulroney sits and reads a statement after he and the provincial premiers reached an agreement in principal on constitutional grievances, after meetin at Meech Lake, April 30, 1987. Left to right Richard Hatfield, N.B., Robert Bourassa, Que., David Peterson, Ont., John Buchanan, N.S., Howard Pawley Man., Bill Vander Zalm B.C., Joe Ghiz, P.E.I., Grant Devine, Sask., Brian Peckford, Nfld, and Don Getty, Alta. Newly released cabinet records show Mulroney lashed out at Pierre Trudeau and other Liberals for engaging in a betrayal of the country as the Meech Lake constitutional accord collapsed. THE CANADIAN PRESS/Charles Mitchell