A judge in Nigeria has ordered the arrest of three top officials of the U.S.-based drug company Pfizer Inc., saying they failed to honor an order to appear in court over a $2 billion suit the company is facing for a 1996 drug trial, court papers showed... Nigeria alleges Pfizer conducted the trials illegally, without the full knowledge and consent of the government and the parents, causing the death of 11 children and injury to dozens of others...Pfizer has always denied any wrongdoing, insisting the drug saved lives.