Reuters: The U.S. Interior Department said on Wednesday it will issue a final decision by the end of April on a proposal to build the first major U.S. offshore wind farm. The announcement followed three meetings in which key stakeholders could not reach an agreement to settle their nine-year regulatory struggle over the proposed $1 billion Cape Wind power project off the coast of Massachusetts. The wind farm would provide electricity to about 400,000 homes, with its tall turbines …