By the summer of 1941, Action T4 became widespread public knowledge in Germany (and also in neutral countries and to Germany's enemies), and on August 24, 1941, Hitler ordered the joint chief of the operation Dr. Karl Brandt to halt it due to public protest (however it still continued, not only out of the public eye but in greater intensity).[3] Hitler did not want to run the risk of an order publicly embarrassing him again and, as a result, the explicit order to carry out the Holocaust was given by him orally. Even if there had been any written instances of this order, they would have almost certainly been destroyed by the Nazis when they realised their defeat was inevitable.[4]