"Sometimes, our biggest threat to privacy is ourselves. The technology is so slick and the benefit so real that we're willing to take a self-inflicted hit on privacy. One recent example: Google's upcoming Gmail service, which will offer one gigabyte of storage, will scan all incoming messages and serve up ads based on the content—which, of course, is sometimes very personal. Gmail will save messages on Google's servers even after we've deleted them, for reasons untold. Already 30 civil-liberties groups and other organizations have written to Google, saying that Gmail is a bad idea. So far, Google has no plans to change the service. (Google was unable to comment because of SEC 'quiet period' regulations covering its upcoming IPO.)"