A new letter addressed to acting NASA chief Janet Petro calls out the space agency for failing to answer questions raised by lawmakers earlier this month.

But the rashness in firing is backfiring. Measure twice and cut once is not their philosophy.” In particular, GOP elected officials are sounding the alarm over probationary employees—those with less than a year on the job—who have been fired in droves by Musk’s Department of Government Efficiency.

Managers at various NASA groups are telling employees to hold off on responding to an email sent on Elon Musk’s orders asking people to describe what they had accomplished the previous week.

An email from a manager sent to engineers at NASA’s Johnson Space Center in Houston instructed employees to “PAUSE on any response to the subject email” and cautioned people to be vigilant “to not disclose proprietary or pre-decisional information to unknown recipients without a need to know.”

Some agencies told employees they don't have to respond to OPM and Elon Musk's directive to list their accomplishments.