US and other nations of the world face a long-term struggle against murderous ideology of terrorism, said Hillary Clinton.
Eugenio Parades boarded a city bus holding a bag with wires exposed that looked like an explosive device.
Barack Obama and George W Bush stood together in New York for the main ceremony at the site of destroyed Twin Towers.
US President honoured the legacy of September 11 victims by personally tracing the trail of terrorist attacks.
US soldiers paid solemn tribute on Sunday to victims of September 11 at bases across Afghanistan.
China has attributed any social unrest in Xinjiang to the forces of terrorism, separatism and religious extremism.
With federal officials warning of a new terrorism scare, Barack Obama has called for a heightened state of vigilance.
Day in Pics: 28th January
Showbiz World - January 28, 2015
President Barack Obama's speech at Siri Fort auditorium