Jack and Rose stood on Titanic's bow might be one of the most recognisable shots in movie history. But shocking new photos have revealed that this iconic structure has now crumbled into rust. Images captured by robotic submarines this summer found that 4.5m (14.7ft) of the ship's bow has collapsed onto the sea floor. The expedition team who made the discovery now warn that it is only a matter of time before the entire ship collapses for good. Tomasina Ray, director of collections at RMS Titanic Inc, which led the expedition, said: 'People ask all the time: "How long is Titanic going to be there?"

Some AI experts say that the core of this problem is not a lack of mitigations, but the increasing use of large language models (LLMs), a type of AI template that includes hundreds of billions of parameters, allowing engineers to teach machine learning systems to perform a variety of tasks with relatively little training. AI researchers have criticized large models like GPT-3 for producing horrifying results that reinforce racist and sexist stereotypes, arguing that the massive nature of these models is inherently risky and makes auditing the systems virtually impossible. Before being fired from Google, AI ethicist Timnit Gebru co-authored a paper which warned of the dangers of LLMs, specifically noting their ability to harm marginalized groups.

HONG KONG/BEIJING – On the same day Donald Trump and Xi Jinping struck a trade war truce in Argentina, some 7,000 miles away Canadian authorities made an arrest that now threatens to make the U.S.-China conflict much worse. The U.S. is seeking the extradition of Meng Wanzhou, chief financial officer of Huawei Technologies Co., after convincing Canada to arrest her on Dec. 1 in connection with violating sanctions against Iran. China reacted with outrage on Wednesday, demanding that both countries move to free Meng immediately. It's hard to overstate the significance of her arrest in Beijing: Meng is the daughter of the founder of Huawei, a national champion at the forefront of Xi's efforts for China to be self-sufficient in strategic technologies. While the U.S. routinely asks allies to extradite drug lords, arms dealers and other criminals, arresting a major Chinese executive like this is rare -- if not unprecedented.