The possibility of a $5-billion federal privacy fine for Facebook suggests that U.S. regulators may be taking a cue from the large penalties their European counterparts have been handing out to U.S. technology giants.<br /><br /><br />Visit us at https://www.inquirer.net<br />Facebook: https://facebook.com/inquirerdotnet<br />Twitter: https://twitter.com/inquirerdotnet