 Nantucket resident Colin Wyatt Letty points to a tiny sharp piece of green foam on Nobadere Beach. I mean, save this and this. He can't walk more than 10 steps without finding more. This is what remains after offshore wind company Vineyard Wind worked with town officials to clean up the massive pieces of debris that initially forced a 24-hour swimming closure on all the island's south-facing beaches. Gavin Norton, owner of Nantucket Surf School, says he's glad to see the cleanup is underway...