Electricity and Magnetism (1955), with Wolfgang K. H. Panofsky. Both of these publications became standard textbooks in collegiate-level science courses. Phillips returned to teaching in 1957, when she became associate director of a teacher-training institute at Washington University. Phillips remained at St. Louis until 1962, when she joined the faculty at the University of Chicago as a professor of physics. Under her guidance the university began teaching physical science courses to non-science majors. She also made laboratory work part of its curriculum. Phillips retired as a professor emerita from the University of Chicago in 1972, but continued to teach elsewhere. Philips was active in the American Association of Physics Teachers throughout her career. She became a member of the AAPT in 1943 and served as its first woman president (1966–67). She also co-edited the organization's official history. In addition, Phillips served on the Commission in College Physics (1960–68) and on the advisory board of the School of Mathematics Study Group (1964–67). For her service to the field of science education, Phillips was elected a fellow of the American Physical Society and the American Association for the Advancement of Science. McCarran Commission During the early Cold War, the Red Scare in the United States lead to widespread accusations of disloyalty. As part of this activity, Senator McCarran headed the Senate Internal Security Subcommittee which called Dr. Phillips to testify. Dr. Phillips worked not only with Robert Oppenheimer on nuclear physics and the Oppenheimer–Phillips process, but also worked with the Teacher's Union. When questioned about whether she was involved with the communist party, Phillips chose to neither confirm or deny, but to simply state that her lineage goes back just as far as any other American. Some may wonder why she did not deny any involvement, especially when there has no evidence of collusion that has come to light since these investigations or her death. It is important to note that the McCarran Commission was not seen as respectable committee by all. Phillips was believed to hold the disposition that the committee's actions resembled those of the Witch Hunt referenced so often in times of panic. A woman of her accomplishments would not want attention from this committee to cast over her many achievements in science. However as pointed out before, college campuses seem to be hot spots for communist ideas. In 1948, the state of Washington launched an investigation on the