Congressional Representative Jerrold Nadler criticized the Bush Presidency for stonewalling by withholding Couch's testimony. Stonewalling is a refusal to communicate or cooperate. Various news programs are buzzing about the Avengers' lack of transparency and stonewalling tactics. Robert Schadewald accused Gish of stonewalling arguments with fabricated data. The Liberals have been criticized for stonewalling the Chinese community. In his studies, "stonewalling" was overwhelmingly done by men, with women overwhelmingly using "criticism". In particular he was able to dismiss the stonewalling Australian captain Lindsay Hassett. Psychologically, stonewalling is a defense mechanism used to preserve one's self and emotions. He nevertheless proved quite effective in Parliament, being particularly good at "stonewalling" certain legislation. Stonewalling in politics and in the world of business can sometimes create a critical advantage. Even after the series was published, the stonewalling continued. Much of the original stonewalling is intact.