Former US Ambassador to the United Nations, John Bolton is in Hong Kong this week. He speaks to Money Magazine about US relations with China, yuan devaluation and what kind of job he thinks President Barack Obama is doing. Frozen yogurt is proving to be quite popular in Hong Kong as it seems new shops are popping up all the time. Money Magazine takes a look at the business and at past trends, such as burger shops and fries stands, that are now starting to struggle.