Twoppics, the stories behind the hottest topics on twitter.

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On Monday, the world's tallest skyscraper formally opened in Dubai. The Burj Dubai (#burjdubai) is more than 160 stories high, rising  over 2,600 feet,  making it the hot twoppic of the moment. For  comparison, Chicago's Willis Tower stands at 1,450 feet.  The luxury high-rise cost about $1.5 billion to build --- apartments sold for about $2,000 per square foot. Sheikh Mohammad, the leader of Dubai, hopes the building will help restore Dubai's appeal as a business hub. At the opening he gave a brief speech where he renamed the building the "Burj Khalifa," after the United Arab Emirates president.

Your hot twoppic of the day is U2 frontman Bono, who came under criticism for his column in the New York Times, where he writes that it's time for America to fight file sharing to protect young songwriters. He blames internet service providers for failing to crack down on illegal file sharing over their networks, angering some tech experts who say that net-content cannot be effectively controlled.

Hot twoppic of the week is Avatar who not only ruled the box office for the third straight weekend but became the fourth- highest grossing movie of all time with a worldwide box office total of just over $1 billion. And that is after just three weeks in release. James Cameron's film Titanic is the #1 grossing movie of all time. And at its current pace, Avatar could easily claim the #2 spot on that list, making James Cameron king of the box office. One reason for Avatar's success? @bkztrendywun tweets I wanna go see avatar today in 3D...I normally wouldn't be eager to watch a movie lke that but I need to see what all the hype is about

This is @TheKateMalloy, and those are your hot @Twoppics on FOX News Radio.

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