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Mr. Adams said he found Mr. Zenkel’s email with a simple online search, but said he didn’t grab it from an NBC website.

“His address is not a private email address,” Mr. Adams said. “It’s a corporate address. It’s not his private email address. It’s a corporate account. It’s company information.”

Twitter and NBC have partnered on some social media-based projects surrounding the Olympics. But Ms. Horwitz said the site doesn’t actively monitor content.

‘Face the Nation’ to remain in hour-long format

“Face the Nation” is remaining an hour long.

CBS News says the Sunday interview program will stick with its hour length beyond its provisional expansion that began in April.

Until then, the broadcast had been only 30 minutes in duration, half the length of rival shows “Meet the Press” on NBC and “This Week” on ABC. Roughly one-third of CBS stations still aren’t airing the second half-hour each week.

CBS News President David Rhodes says the announcement Sunday is meant to assure those holdouts that the show’s expansion won’t be short-lived.

The announcement was made at the Television Critics Association conference.

“Face the Nation,” with Bob Schieffer anchoring, has grown in viewership in recent months and is now the top-rated Sunday morning public-affairs show.

FTC clears Comcast’s $3B-plus sale of A&E stake

U.S. antitrust authorities have cleared Comcast Corp.’s more than $3 billion sale of its 15.8 percent stake in A&E Television Networks to the Walt Disney Co. and Hearst Communications Inc.

The Federal Trade Commission said Monday that an early end to its 30-day review period for the deal was granted on Friday.

The A&E networks contain History Channel, Lifetime, Biography as well as its namesake network.

Comcast said in May that it exercised the option requiring Disney and Hearst to buy back its stake.

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