Employees at NASA’s Johnson Space Center received a cryptic email Saturday afternoon with the subject line: What did you do last week? The message, from the Office of Personnel Management, instructed employees to respond “with approx.

Musk’s directive to federal employees to justify their jobs falls flat as the Office of Personnel Management says it's safe to disregard his message.

Hundreds of thousands of federal workers have until just before Tuesday to explain what they accomplished over the last week.