hey, insomniacs, you're watching "world news now." >> sleep is overrated. ♪ ♪ come sail away with me finally, why don't you come sail away with us. what is our ship called? >> you read and i'll find it. oh, that. >> "insomniac." "insomniyacht." >> a rare voyage for the nation's oldest warship. >> the "uss constitution" set sail to commemorate her victory during the war of 1812. >> reporter: for only the second time in 113 years, the "uss constitution" set sail under her own power. the world's oldest commissioned warship still afloat was tugged from boston harbor towards open water.