It's true. The google group in question is still active and visible to any Google employee. However, you should put this in perspective. Google is still one of

It's true. The google group in question is still active and visible to any Google employee. However, you should put this in perspective. Google is still one of the most transparent companies of its size. People intentionally collected and shared high sensitive company information. At most companies, security would show up at the desk of everyone involved in this with a box to pack their stuff. At Google, they got an email which asked them to delete the document. Also, keep in mind that we are talking about a project that is not launched, probably never will be and, if you give Google's leadership the benefit of the doubt, was never going to be.