The UN’s cultural agency UNESCO has warned that its name and logo are being illegally emblazoned on false documents to facilitate a scam: More than 20 customers, solicited online, were shown photos of supposedly valuable statues in Mali and Cameroon, that they could buy. Some art lovers fell for it. A UNESCO investigator in Paris, Cedric Bourgeois, tells host Carol Hills how people were swindled, and what’s being done to stop others from being defrauded.