内容摘要：However, he said, the behaviour is likely more about protecting themselves than drowning their foe.

However, he said, the behaviour is likely more about protecting themselves than drowning their foe.

Taiwan's President Lai this week urged democracies such as Japan and the US to develop "non-Red" supply chains to counter China.Not everyone is convinced that this strategy is working, however. Chinese technologists have been effective at working around the bans to develop competitive indigenous technology. And Bill Gates this week said that these policies "have forced the Chinese in terms of chip manufacturing and everything to go full speed ahead".

Trump wants TSMC Arizona to become a foundation stone for his American golden age. But the company's story to date is perhaps the ultimate expression of the success of modern globalisation.So for now, it's a battle for global tech and economic supremacy, in which Taiwan's factory technology, some of which is now being moved to the Arizona desert, is the critical asset.Patrols of the UK's nuclear-armed submarines are supposed to last no longer than three months. But the last eight patrols have all exceeded five months, as the navy's ageing fleet of submarines requires ever more time in maintenance. It means the submariners on board are spending longer and longer underwater.

A submariner who was on board one of those long patrols described to me a worrying situation in which the crew ran low on food and medicines. Towards the end of the patrol he described how hungry crew members rummaged for tins of food in hidden compartments inside the submarine. He said they even had to make bread out of custard powder, because they'd run out of flour.The navy has long found it difficult to recruit sailors into its Submarine Service, often known as the "Silent Service".

But the case of the 204-day patrol by HMS Vanguard raises a wider issue.

Virtually everyone agrees that Britain's armed forces are depleted. Troop numbers are down, morale is weak, and some ageing equipment is in a poor state. And all this comes at a time of greater geopolitical uncertainty, as the threat from Russia looms large across Europe.The BBC has spoken to miners who worked in at least two other illegal mines who told us they saw children being abused in the shafts where they were working.

Tshepo, not his real name, says he saw older men forcing young boys to have sex with them underground."In some instances, they did it for the money. Some are recruited solely for that purpose, because of the financial incentives that will come with the practice of maybe trading sex underground."

He adds that the abuse deeply affected the children."They change their behaviour patterns and have trust issues. They don't want you to get close to them, because they feel that they can no longer trust anyone."