Former Homeland Security Secretary Michael Chertoff (L) speaks during a discussion panel on 'tactical communications and interoperability among fire fighters, law enforcement, public officials, and other public safety/first responders from the period prior to 9/11 attacks, progress made since then, and what the future holds' at the Press Club in Washington, DC, September 3, 2009. Getty Images logo Getty Images 29 months ago

Former Homeland Security Secretary Michael Chertoff (L) speaks during a discussion panel on 'tactical communications and interoperability among fire fighters, law enforcement, public officials, and other public safety/first responders from the period prior to 9/11 attacks, progress made since then, and what the future holds' at the Press Club in Washington, DC, September 3, 2009.