A rescue boatcrew aboard a 45-foot Response Boat-Medium from Coast Guard Station Calumet Harbor, in Chicago, patrols near Coast Guard Cutter Mackinaw, moored at Chicago's Navy Pier Dec. 1, 2012.  The cutter crew is bringing 1,300 Christmas trees from northern Michigan to recreate Chicago's historic Christmas Ship.U.S. Coast Guard photo by auxiliarist Jay Katzman
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