This helped lead to the launch of Challenge.gov, a one-stop clearinghouse that agencies can use to mount their own challenges.

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Kenny Logan and Roger Uttley were speaking to CNN at the launch of Logan's Challenge, a fundraising event for Sparks, the children's medical research charity.

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Mayor Rahm Emanuel announced today the launch of the Chicago Broadband Challenge, a unique initiative that will engage the public to secure Chicago's position as one of the digital capitals of the country and the city with the greatest availability of ultra-high-speed broadband in the United States.

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This year, the company has the added challenge of managing the launch of a new Fiat dealership network.

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This creates a serious challenge for missile defense because there is no longer any warning time ahead of launch.

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The immediate challenge for OWN will be to keep viewers coming back beyond the launch and especially before Winfrey becomes a permanent fixture on air.

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