Candlelight vigil

Americans are remembering 9/11 with moments of silence, readings of victims' names, volunteer work and other tributes 21 years after the deadliest terror attack on U.S. soil.

Victims' relatives and dignitaries will convene Sunday at the places where hijacked jets crashed on Sept. 11, 2001, the World Trade Center in New York, the Pentagon and a field in Pennsylvania.

China's state censors on Thursday scrubbed the Internet of references to commemorations of the Tiananmen crackdown including a huge vigil in Hong Kong, extending a campaign of repression that has seen dozens of critics detained.