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.

Some federal agencies, including the State and Defense Departments, told their employees not to respond to an email asking for a list of tasks they completed.