# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2011-06-04 08:34:19 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/76929762387439616) RT @bengoldacre: Mobile phones "possibly" cause cancer. What does "possibly" mean? http://t.co/Gi7DxCJ