On 14 January 1965, Lemass travelled to Belfast in the utmost secrecy. The media and even his own cabinet had not been informed until the very last minute. The meeting got a mixed reaction in the North. In the Republic, however, it was seen as a clear indication that the "Irish Cold War" had ended, or at least that a thaw had set in. Lemass returned the invitation on 9 February of the same year by inviting O'Neill to Dublin, but he did not want to be seen to be anti-British. The Irish government encouraged overseas developments with the United States, so that they could share in the 50th Anniversary celebrations of the Easter Rising. The two leaders discussed cooperation between the two states on general economic matters; local services such as road systems and sewage facilities; agriculture, including exempting Northern Ireland from Britain's quota on butter imports from the Republic; customs; and all-Ireland representation in international sporting events. While in 1966 people began to take notice of Ian Paisley's more hard-line speeches, O'Neill was by Ulster standards a 'liberal' (Roy Hattersley MP), and Harold Wilson's government decided that there had to be radical change as a consequence of the diplomatic "rapprochement" with Lemass. The 50th Anniversary of the Easter Rising was celebrated by Insurrection a TV mini-series commissioned by RTÉ that was later broadcast on the BBC.