Sri Lankan authorities on Saturday detained a British news team that produced a report about allegations of abuse and ill-treatment of Tamil refugees. Three journalists from Channel 4 were seized and handed over to Sri Lanka’s Criminal Investigation Department for interrogation, police spokesman Ranjih Gunasekera told reporters. The report, aired Tuesday on Channel 4, chronicled the alleged abuse of Tamils in internment camps in the city of Vavuniya in northern Sri Lanka, where fighting has raged between government and rebels