Google Latitude is an application that allows you to share your current or most recent shared location with your friends. It also allows you to share your location on your blog by using the Google Latitude Badge.
A Google Reader Help thread has a non-English speaking individual detailing a bug that occurred with his Google Profile using Latitude and the "Like" feature in Google Reader.
He said that if he chooses a "like" in Google Reader, "the other people will see my Latitude location without any limit." This was reported on September 8th. On September 21st, Google's Roger confirmed the bug and said they resolved the issue:
Thanks for reporting this and for your additional research! After working with our friends on Google Latitude, we've found the problem and fixed it, so this shouldn't happen again, regardless of your language setting. Please let us know if the problem resurfaces as we take your privacy very seriously.
I don't fully understand how this issue happened with only non-English based accounts, but the issue does seem to be resolved now.
Forum discussion at Google Reader Help.