Microsoft once again came under fire for a failed approach to Chinese web search. The motherboard and The Guardian reported that Bing accidentally blocked the search for “Tank Man,” The Tiananmen Square Protester, in countries such as US, France and Singapore. The block was caused by “unintentional human error” which was tried Microsoft, according to a spokesman.

The site that the license results from Microsoft, such as Duckduckgo, also suffered as a result.

Block keywords such as “Tank Man” are expected in China. Microsoft can run Bing in China because it has an agreement to filter subject searches that are not liked by the Chinese government, such as the massacre of Tiananmen square (whose birthday passed on June 4) or Dalai Lama. Rivals like Google refused to operate in China because of sensor problems.

However, this is not too good for Microsoft. It causes attention to mistakes and gives web users the taste of what Bing is censored like China. That is the opposite of what the company wants to remember the attitude of the US government that is getting cooled against China and companies that do business in this country.