SAN FRANCISCO (AP) — A consumer watchdog group is suing the Federal Trade Commission in an attempt to prevent Google from making sweeping changes to its privacy policies next month. The planned revisions would enable Google Inc. to bundle the personal information gathered by its Internet search engine and other services, such as Gmail, YouTube and Plus, so the company can gain a better understanding of its users and potentially sell more advertising. Google has depicted the switch as an improvement that will make its privacy policies easier to understand and help deliver more helpful information to users.