China asks Angola to tighten security as kidnappings rise

Chinese businesses have asked Angolan President Jose Eduardo dos Santos to do more to protect foreigners after a string of kidnappings, in rare public sign of tension between Beijing and its biggest trading partner in Africa. A sharp economic downturn in Angola after a year of subdued oil prices has helped fuel a rise in kidnapping syndicates who demand ransoms of up to 100 million kwanza ($750,000), the Chinese chamber of commerce in Angola said in a letter sent to dos Santos's office and the i