It’s Friday, so let’s just sneak in some bad news while you’re not paying much attention. We’ll start with a study from location intelligence company Location Sciences, which found that up to 65% of location-based ad spend is mistargeted. More precisely, 29% of the ads are delivered outside the target area while 36% rely on IP address, which is not accurate. Oh, and 36% of top GPS-enabled apps display location fraud.

Retailers may be realizing that personalization isn’t as powerful as conventional wisdom suggests. OneMarket found the most common use for customer identity systems is to verify eligibility for targeted discounts, while personalized product recommendations ranked last. A surprisingly high 29% said they could tie ad impressions to subsequent behavior in physical, Web, and mobile apps. Much more here on the topic.

The U.S. Department of Justice has formally requested the sale of the Chrome browser among other measures following last August’s guilty verdict in its search advertising antitrust suit (not to be confused with last week’s guilty verdict in the adtech antitrust lawsuit). Google is asking for a much narrower focus on deals to be the default search engine for Apple, Mozilla and others. There will be a three-week hearing on the government’s proposals.