China artist Ai Weiwei says he regrets designing Beijing Olympics Bird's Nest Ai, whose activism has made him a thorn in the side of China's communist authorities, disappeared into custody for 81 days last year as police rounded up dissidents and lawyers amid online calls for Arab-style protests in China. Upon his release in June, he was charged with tax evasion, charges he maintains are politically motivated attempts to silence him. He told the Yomiuri the Chinese government was "pursuing a one-sided pragmatism without freedom of speech and thought, and is in a desperate state in which it has become ethically bankrupt." The interview, which the paper said was carried out on Wednesday, was published in English on its website on Monday. "The biggest crime of a dictatorship is to eradicate human feelings from people," said Ai. "I can endure this situation because I experienced many hardships as a child and I have many supporters," he said. However, I doubt the average person could maintain a normal state of mind.