This article reports that two married professors, John Moraros and Yelena Bird, whose contracts were not renewed by New Mexico State University, in what they say was a case of discrimination and retaliation, now say they are also the victims of baseless allegations of plagiarism by the university's president. Administrators at New Mexico State, who have been dogged by bad press over the incidents, are looking closely at the professors' 2004 master's theses. A senior public-health professor at the university says that President Michael V. Martin, who will soon become chancellor of Louisiana State University at Baton Rouge, visited his office brandishing copies of the professors' theses and urged him to look at passages he thought were similar in the two. The senior professor, Robert Buckingham, who has supported the dismissed professors, said Mr. Martin angrily told him that he had collected unflattering information about Mr. Buckingham's past that could be released to the public. The events make up merely the latest round in a complicated case in which allegations have been lobbed among the university, the professors, and their supporters.