Republican Jan Brewer, after being sworn in as the twenty-second governor of Arizona, addresses those gathered during inauguration ceremonies on Jan. 21, 2009, in Phoenix. Ross D. Franklin/AP hide caption

itoggle caption Ross D. Franklin/AP

Detective Enrique Chavez logs weapons from a gun buyback in Miami. Arizona's new law requires municipalities to re-sell weapons recovered in such programs. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images