In our digital age, many folks worry about personal information being leaked or exploited online. It turns out the threat to privacy may exist outside the digital realm too—in one of the most innocuous and least-expected places: elderly women. A group of Eden Prairie women who have been dubbed the “Grandma Brigade” works to collect tiny bits of information about voters, which they then pass off to a state Democratic Party database. The data collected are usually harmless—recent deaths of voters, donations, the political views of their family or friends—but they eventually end up in a central database in Washington. Taken together, they can paint a startlingly accurate picture of the way someone will vote.