Canadian oil giant Talisman Energy Inc. again defended Tuesday its involvement in war-torn Sudan, despite recent rumours that the war against terrorism would force the Canadian oil producer out of the troubled African country. In a speech to the prestigious Royal Institute of International Affairs in London, Talisman president Jim Buckee said his company's policy of "corporate social responsibility" in Sudan was better than leaving the country with sanctions. But a report in Ottawa submitted Tuesday by several non-governmental agencies says an airstrip maintained by Talisman and its partners has been the launch pad for repeated attacks on civilians by the Sudan government.