Andy Silverman and Tarik Sultan discuss "U.S. Immigration Policy In the Aftermath of 9/11" at 12:15 p.m. in the College of Law, Room 139.

Michael Baranger will speak on "The Interdependence of Spatial Complexity and Genetic Diversity in Evolutionary Biology" at 3 p.m. in the Physics and Atmospheric Sciences building, Room 224.

The International Arts Society Film Series presents "Woman of the Dunes" in the Modern Languages building auditorium at 7:30 p.m.

Paul Lampe discusses "Regulation of Intercellular Communication During the Cell Cycle" at 11 a.m. in the Arizona Health Sciences Center, Room 5403.

The Park Student Union Program will show the movie "Higher Learning" at 7:30 p.m. on the Franklin Lawn.