The head of MI5 in the UK says that China is a big danger to the country. He says that people from China try to get secret information from the UK. The police and security people stopped some of these actions, but it is hard to prove everything in court.

There was a big court case about two men in the UK. People said these men helped China get secret information. But the court stopped the case because there was not enough proof. Some people think the government did not want to make China angry because of business.

Many people in the UK want to know why the case stopped. Some people in the government say the police and lawyers should have done more. Other people say the UK needs to be careful with China but also work with them for business. The two men say they did nothing wrong.