Tyler Drumheller, the former highest-ranking CIA officer in Europe, told "60 Minutes" that the administration "chose to ignore" good intelligence, the network said in a posting on its Web site.

CNN: Ex-CIA official: WMD evidence ignored

The statement comes days after Sony CEO and President Howard Stringer broke his silence on the matter, posting an apology for the stolen data and network issues on Thursday.

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The opponents each have a presence on a host of digital communities, including streaming music service Spotify, image-sharing network Pinterest and the Facebook-owned picture network Instagram - where Mr Romney has been busy posting pictures of himself at home with his family.

BBC: Barack Obama Facebook campaign sees 'likes' soar

We launched the first phase of the Social Innovation Fund Knowledge Network, a web-based vehicle for facilitating dialogue, exchanging information, and posting documents among grantees.

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