The mentality created by the War on Terror created the demand for a sense of security which translated, in the US and the UK, into excessive investment in homes - the ultimate "place of safety" in the Anglo-Saxon mindset. The War on Terror gave us the economic crisis also.
America still needs to re-discover itself as a Republic rather than a police force with a profit center and the powerless of the world have yet to prove conclusively that they have understood that there is no redemption in terrorism
The al-Qaida strategy of attacking the United States created its own form of blowback. But the triumph of militarisation after 9/11 exacted a deeper cost on the world, says Vicken Cheterian.
The world has been changed by the securitisation of everyday life and the Islamisation of security. The accompanying threat-complex has shifted American sensibilities, says Cas Mudde.
A focus on the violence of an Arab and Muslim minority skewed western policy for a decade. The great events of 2011 are a chance to think afresh, says Jane Kinninmont, whose life was altered by witnessing the 9/11 attacks.
America’s excessive reaction to the 9/11 attacks was the prelude to a decade of damage and injustice on a vast scale. An understanding of what went wrong is essential to progress in the next ten years, says Shahrbanou Tadjbakhsh.
The tragedy of 11 September 2001 was used by authoritarian forces in the United States as a political opportunity. The ensuing damage to liberty, legality and democracy has been deep, says Mariano Aguirre
The attacks of 11 September 2001 did not, after all, transform the world. But they did propel the United States into a unilateral and regime-change moment - and pose a more enduring challenge both to American and European conceptions of security and stability, says Volker Perthes.
A flawed response to terrorism on its soil brought the United States low. The lessons are also for the rest of the world to learn, says Rein Müllerson.
The “war on terror” launched in response to the crime of 9/11 signalled the decline of American and western power and marked the emergence of a multipolar global landscape. The challenge now is to work out a politics of mutual recognition that meets the permanent reality of intertwined human fate,
A terror-filled day of mass murder in the eastern United States imprinted itself on the world's consciousness - and became the prelude to a decade of further violence. openDemocracy writers reflect on the impact and legacy of the events of 11 September 2001.