Like David against Goliath, the Martha’s Vineyard/Dukes County Fishermen’s Association and a well-known Menemsha draggerman last week filed a lawsuit in federal court against the U.S. Secretary of the Interior, claiming that the giant wind farm planned by Cape Wind Associates for Horseshoe Shoal in Nantucket Sound threatens to put Island fishermen who work the shoal, including squidders and conchers, out of business for good.