The Congress of South African Trade Unions (COSATU), stung by last week’s humiliating deportation of its top officials, is mobilising civic groups in the region to seal entry points into Zimbabwe for four days — a move that could trigger a diplomatic rift between the two countries. The proposed blockade, being coordinated in conjunction with Amnesty International in Johannesburg, South Africa, is pencilled for December 4 to 8 2004, according to information obtained by The Financial Gazette.