If I strip out the editorializing, I think the conclusions are:
1. Someone told Claude they had an AR-15 and the CEO of Anthropic was "in their sights". Anthropic reported this to the police.
2. Anthropic contracts with a security agency.
3. Anthropic is looking to build in-house capability for security.
Anthropic clearly has high-value targets (see, e.g. the person with the AR-15 from point 1). When I worked at Microsoft in the 2000s, they also had in-house security to investigate threats against facilities and executives.
I would believe Anthropic is doing evil things, but I don't think this article actually makes that claim, despite the bombast about "pre-crime".