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Giant lobster to head back to sea
Tokens honoring Flight 93 sit near the fence surrounding the permanent memorial's construction site in May 2011.
Look back at some of the work that went into building the memorial to United Flight 93 in Pennsylvania.
Turning energy from the waves into electricity people can use on land.
Delta Air Lines on Tuesday suspended flights to Israel's main international airport because of reports about a nearby rocket attack, the company said.