In the years since the tragedy of 9/11, the United States has not had another major terrorist attack. But as commentator and veteran ABC News diplomatic correspondent Barrie Dunsmore tells is this morning , the efforts to achieve greater security have come with many significant and not always obvious costs.

As the tenth anniversary of the terror attacks of 9/11 approaches, commentator Larry Doane has been thinking about human nature - and the nature of change.

As we prepare to observe the tenth anniversary of the 9/11 terror attacks, commentator and former Vermont Governor Madeleine Kunin is remembering where she was on that day - and considering where we - collectively - are today.

In considering the 10th Anniversary of the 9/11 terror attacks, commentator and UVM Professor Saleem Ali wonders how we might prevent terror attacks from derailing peace processes.

As the tenth anniversary of the terror attacks on 9/11 draws near, commentator Susan Cooke Kittredge is thinking about the meaning of the words "Ground Zero".

As the 10th anniversary of the Terror Attacks on 9/11 approaches, commentator and Marlboro College teacher Jay Craven finds himself reflecting on the sometimes hidden costs of war.

As America prepares to observe the tenth anniversary of the 9/11 terrorist attacks, VPR commentator and Vermont Humanities Council executive director Peter Gilbert offers some historical context.