A report into unrest in China's factories says a new generation of migrant workers is becoming increasingly assertive and willing to strike for higher pay and better conditions. The Hong Kong-based research group, the China Labour Bulletin, says nearly half of China's 200 million internal migrants have no wish to return to their villages. It says that they want money to build a new life in the cities. Damian Grammaticas reports from Beijing.

For Chinese ruling Communist Party, this new assertiveness poses a real problem. It needs to keep a lid on discontent in its labour force. It wants to see incomes and living standards improve, but it will not allow workers to form their own independent unions which could challenge the party, so they remain disorganised. Any brave enough to lead industrial action often lose their jobs. And for consumers in the West, it means everything from jeans to iPhones, toys to televisions may become just a little bit more expensive.

A report by the World Health Organisation says the number of people infected with tuberculosis has gone down for the first time, from 9.4 million to 8.8 million. The number of people killed by the disease has also fallen to 1.4 million, the first drop in 10 years. The United Nations Secretary General Ban Ki-moon said this was major progress, but appealed for more money as too many people were still dying. Improvements in the figures can partly be attributed to developments in China and also in Brazil.