Police say a professor at Columbia University's Teachers College found a swastika painted on her office door, and the police department's hate crime unit is investigating. Police were called to Teachers College on Wednesday morning after Professor Elizabeth Midlarsky, who is Jewish, discovered the swastika. This is the second incident in less than a month involving a possible hate crime at Teachers College, Columbia University's graduate school of education. A noose was found October 9 on the office door of a black professor, roiling the Ivy League campus. No arrests have been made in either incident.