<div><span style="font-size: 1rem;">As America remembers 9/11 with moments of silence, US President Joe Biden will mark the 21st anniversary of the attacks at the Pentagon on Sunday.</span><br></div><div><br></div><div>President Joe Biden plans to speak and lay a wreath at the Pentagon, while first lady Jill Biden is scheduled to speak in Shanksville, Pennsylvania. Vice President Kamala Harris and her husband are due at the World Trade Centre in New York.</div><div><br></div><div>On September 11, 2001, nearly 3,000 people were killed as 19 al-Qaeda hijackers seized control of four jetliners, sending two of the planes into New York’s World Trade Centre, one into the Pentagon and the fourth into a field in western Pennsylvania. Source: AP</div><div><br></div><div>bnbd24/fas</div>