The Download: Trump at Davos, and AI scientists

Plus: why it's so hard to achieve AI sovereignty. At Davos this year Trump is dominating all the side conversations. There are lots of little jokes. The US president is due to speak here today, amid threats of seizing Greenland and fears that he's about to permanently fracture the NATO alliance. Read Mat's story to find out more . This subscriber-only story appeared first in The Debrief, Mat's weekly newsletter about the biggest stories in tech.