| During his first term Donald Trump tried to buy Greenland. Now, he says, “One way or the other we’re going to get it.” American officials will visit the territory this week. Why does Mr Trump want it? Part of the answer is Greenland’s big rare-earth deposits. Read our primer on the world’s most wanted metals and minerals.
Elsewhere we examine why North Korean hackers are such good crypto-thieves. In recent years they have made off with billions of dollars across dozens of separate heists. Their success is the result of a decades-long effort. | 
