Jefferies

Jefferies is not mentioned in any of the provided news articles. Therefore, it's impossible to provide a summary about the organization based on the given information. The articles discuss HSBC's restructuring, the rising cost of lab monkeys in China, and potential merger talks between Glencore and Rio Tinto. None of these topics relate to Jefferies or provide any context for understanding its current newsworthiness, recent events, or relevance.