How much should we worry about the pneumonic plague lableak in Siberia?

Epistemic status: I wrote this up hoping people can poke holes in it because I am quite worried.Here's what we've heard so far:Local media is reporting that an employee of a BSL-3 lab in Irkutsk, Russia, died of pneumonic plague on Oct 1st. The initial quarantine covered 200 people who were in contact with the employee before she died.The FSB (Russian FBI) was seen assisting in the quarantine, which means it was not voluntary.Soviet-era whistleblowers like Ken Alibek claim Irkutsk was a major bi...