Boston: State police Lt. Steve Hines and his wife, Susan, left talk with Congressman Nikki Tsongas and Brian Hart, president of Black-I Robotics which built the prototype robot in foreground. The robot, to be used the state police bomb squad at Logan Airport, is being dedicated to their son, US Army 1st Lt. Derek Hines who was killed in action in Afghanistan. Bryan Eaton/Staff Photo

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