U.S. President Barack Obama pays tribute to the first responders who lost their lives in September 11 Terrorist Attacks

During his weekly radio address, President Barack Obama pays tribute to the first responders, fire and police personnel, who lost their lives ten years ago in the September 11th attacks. Obama declares September 11th as a National Day of Service and says that it is an appropriate way to memorialize the victims and commemorate the anniversary in communities around the country.