Because of an editing error, an article in The Sun yesterday may have been unclear about the academic degrees earned by Dr. Steven J. Hatfill, a former Army researcher under scrutiny in the anthrax investigation. He is a physician who earned a medical degree in Zimbabwe in 1984, and that degree is not in dispute. The doctoral degree he claimed on his resume to have received in 1994 but did not receive, according to the registrar at Rhodes University in South Africa, was a Ph.D.