FILE - In this Tuesday, April 12, 2016, file photo, new features of Messenger are displayed during the keynote address at the F8 Facebook Developer Conference in San Francisco. Facebook has squeezed just about as many ads into its main platform as it can. Any more and users might start to complain. Now, ads are moving on to Messenger, and WhatsApp may not be too far behind. (AP Photo/Eric Risberg, File)
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