9/11, September 11 | featured news

Swedish police arrested four people on suspicion of preparing a terror attack and evacuated an arts center in Sweden's second largest city on the eve of the 9/11 anniversary, officials said Sunday.

Ten years after the 9/11 attacks, a FRANCE 24 correspondent in Helmand province found that many Afghans had never heard of them – and have no idea why American troops are there.

A mother in Malaysia greeted her dead son. People in Manila left roses for the victim who helped give them homes. And mourners in Tokyo stood before a piece of steel from ground zero, remembering the 23 bank employees who never made it out alive.

Many California teachers say the focus on state testing gives them little time to really explore the topic. Some say educators are hesitant because of sensitivities over religion, war and politics.

A hacker broke into the Twitter account of NBC News and sent out a handful of false tweets about a suspected hijacking and a plane attack at ground zero just days before the tenth anniversary of 9/11.

Sept. 11 changed all of us, including our national leaders who were either in charge on that day, or are responsible for our safety today. "The Early Show" spoke to a number of them, to find out where they were during the terrorist attacks ten years ago. "I was driving down Lake Shore Drive in Chicago. I was a state senator at the time as well as teaching law and practicing law. I was going to a senate hearing," President Barack Obama remembered.

As his global teleconference broke up in disarray on September 11, 2001, a top economist at a U.S. investment bank began to ponder what the attacks on the United States might tell him about the future shape of the world.

View a 180 degree panorama of the World Trade Center site

U.S. officials said Thursday evening they have "specific, credible but unconfirmed" information about a potential threat against the United States coinciding with the 10th anniversary of the September 11 terrorist attacks.

For the first time, the full audio recordings of communications between military and civilian air traffic controllers as they were dealing with the hijackings on Sept. 11, 2001, have been made public.