Google Shopping banned weapon listings way back in 2012, but users have just been noticing it -- and have learned that the filtering has been a little too aggressive. Visitors from the US and elsewhere have discovered that the shopping search page hasn't been showing results for anything with "gun" in the name, including some perfectly innocuous items. Did you want to find Burgundy wine or Guns N' Roses' Appetite for Destruction? Too bad. You could still find things through a regular Google search, but that wouldn't be as helpful.