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This Day in Tech: Facebook adds Timeline, HP adds Whitman

Too busy to keep up with today's tech news? Here are some of the more interesting stories from CNET News for Thursday, September 22.

Too busy to keep up with today's tech news? Here are some of the more interesting stories from CNET News for Thursday, September 22.

• Facebook unveiled a new look and feel, highlighting new features such as Timeline and a new Open Graph. CNET's Daniel Terdiman reported: Timeline is "the story of your life," significantly altering the way people's information is shown on the world's leading social network, presenting "all your stories, all your apps, and a new way to express who you are," Mark Zuckerberg said.

• Here's what you need to know about the Facebook changes announced today.

• An interesting political tidbit to come out of Netflix CEO Reed Hastings' portion of the F8 keynote speech today is that, thanks to a law banning the dissemination of video rental records, Facebook users in the U.S. can't access Netflix through Facebook right now. And American Facebookers won't get the integration with Netflix that's rolling out to the rest of the world unless Congress passes a bill currently up for consideration.

• Leo Apotheker is out at HP. Former eBay CEO Meg Whitman will take over as Hewlett-Packard's chief executive after the market closes this afternoon. But are Hewlett-Packard's problems too big to fix?

• Netflix's recent decision to separate its DVD-by-mail service from its streaming service may set it up nicely for Amazon to purchase at least part of the company.

• An Arizona man has been arrested on charges of breaking into Sony Pictures Entertainment's computer system, and two California men have been accused of attacking Santa Cruz County servers. The three men are believed to be members of the LulzSec and Anonymous hacking groups.

• Turning cars into mobile computers doesn't come without risks. "A new vulnerability is opening up," Wind River Senior Director Georg Doll told CNET. "One security threat is that a potential attacker gets control of the car's electronic control unit, or ECU. All the units are connected. You could do something like apply the brakes to a single wheel, and the rest of it you can imagine. The second one would be someone seeking personal information about the driver or other people who are using the car." There are several ways in. A virus can enter a car through a downloaded piece of music and mess up the controls. Or a hacker can control a car remotely by using the car's global positioning system as a receiver.