Anthropic employees discuss shelters in case of dangerous AI development: what is known?

According to The Wall Street Journal, some employees associated with Anthropic have discussed potentially buying land in remote areas of the United States where they could relocate if events developed unfavorably. There is no confirmation that any land has been purchased or that Anthropic is building shelters. The discussions reflect concern among participants about the potentially catastrophic consequences of losing control over artificial intelligence, but they do not demonstrate that a catastrophe is expected soon or that the company has a corporate evacuation plan.