A director of a U.S. antislavery group plans to file a $1-billion class action lawsuit against Talisman Energy Inc., alleging the Canadian oil company participated in human rights abuses in Sudan...The American Anti-Slavery Group said in a statement the suit, scheduled to be filed on Thursday, charges Talisman "with violations of international law for participating in the ethnic cleansing of black and non-Muslim minorities in southern Sudan."...The suit charges that: "Talisman, in an effort to protect its oil fields in Sudan, aided and abetted the fundamentalist Islamic government in its ongoing and self-proclaimed 'jihad' -- a campaign that has resulted in massive civilian displacement; the burning of villages, churches and crops; and the murder and enslavement of innocent civilians"