The German trachea transplanters Heike and Thorsten Walles treated the 3 patients with their pig-intestine-based tracheal transplants (one of them performed with Paolo Macchiarini). They are currently suing me in court for reporting about those, while their employer, the University of Würzburg, investigates these tracheal transplants together with the evidence for blatant data manipulations in several Walles publications on suspicion of misconduct. None of those 3 patients is alive today, yet Walles insist that neither of their transplant operations was in any way related to the patients deaths or that it might have reduced their quality of life. They keep declaring those operations as resounding successes, free from any evidence, though the last transplant was performed in 2009 and never again. A corresponding clinical trial, financed by the German Ministry of Education and Research with €1.5 Million between 2009 and 2015 (and briefly mentioned at the beginning of the PEI letter), did not achieve even a single milestone. Not even animal experiments were permitted by the responsible watchdog institution, the Paul Ehrlich Institute (PEI). For almost 7 months, PEI refused to answer my Freedom of Information inquiry. It seems however, my complaints to authorities and the Federal Ministry of Health, finally had an effect.