Nuclear Materials Smuggling: Analysis of Port Networks Citation: C. Li, “Nuclear Materials Smuggling: Analysis of Port Networks”, INFORMS ICS Conference Proceedings, Monterey, CA, Jan. 9-11, 2011. Associated Project: 1. SHIELD (Smuggled HEU Interdiction through Enhanced anaLysis and Detection): A Framework for Developing Novel Detection Systems Focused on Interdicting Shielded HEU