CAMBRIDGE, Mass. (AP) - A Massachusetts Institute of Technology literary scholar said he regrets failing to credit some passages in his biography of the poet E.E. Cummings, but denied charges of plagiarism. An article in the Harper's magazine issue scheduled to arrive at newsstands Tuesday accuses Christopher Sawyer-Laucanno of "wholesale borrowing" from the 1980 book "Dreams in the Mirror: A Biography of E.E. Cummings," by Richard S. Kennedy. Sawyer-Laucanno's book, "E.E. Cummings, A Biography," was published last fall. He said in Monday's Boston Globe that he regrets what he called an oversight in documenting his sources, but insisted the mistakes...