It is quite a shame that the original "Arbeit Macht Frei" sign at the entry gates to Auschwitz forced labor camp has been stolen. However, the right thing to do in this situation is to retain the integrity of the museum by replacing the sign with a replica immediately. The chilling effect that the sign evokes is not diminished by its origin. There is a plethora of documentary evidence of the signs existence so replacing it quickly without hesitation is the best thing the Polish government can do while running a parallel theft/vandalism investigation.
Saudi FM: We hope Iran uses sanction relief for development, not nefarious activities (Reuters)
from the article: Netanyahu: Poland must find stolen Auschwitz sign