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[00:00.20]The United States is marking the 14th anniversary 
[00:04.15]of the September 11th terrorist attacks. 
[00:08.12]U.S. officials and many other Americans 
[00:11.56]attended observances Friday 
[00:13.96]to remember those killed and their loved ones.  
[00:18.16]Nearly 3,000 people died on September 11, 2001 
[00:24.24]when hijackers used four passenger airplanes 
[00:28.60]to carry out suicide attacks in the United States. 
[00:33.44]In addition to the victims, 
[00:35.32]the 19 hijackers also were killed.  
[00:39.52]Al-Qaida leader Osama bin Laden and his group 
[00:43.12]claimed responsibility for the attacks. 
[00:47.00]U.S. forces killed him in a surprise raid 
[00:50.64]on his hiding place in Pakistan four years ago. 
[00:55.96]Friday morning, President Barack Obama,
[00:59.20]his wife and White House workers 
[01:02.36]observed a public moment of silence in Washington. 
[01:06.76]They gathered on the White House grounds at 8:46.  
[01:11.12]That was the exact time when a hijacked airplane struck the World Trade Center.  
[01:17.72]In New York, families of the victims gathered for a ringing of bells 
[01:23.40]and reading of the names of those killed in the terrorist attacks. 
[01:29.44]Moments of silence were held at 8:46 and 9:03 in the morning,  
[01:35.72]when a second hijacked plane also hit the World Trade Center.  
[01:41.32]Near Washington, U.S. Defense Secretary Ash Carter and other officials 
[01:47.24]attended an observance at the Pentagon, 
[01:50.44]the home of the Defense Department. 
[01:53.64]They joined in remembering those killed 
[01:56.32]when a hijacked airplane hit the Pentagon, killing 184 people.  
[02:03.12]Earlier Friday, a large American flag was hung down the side of the Pentagon, 
[02:09.00]where the passenger jet hit. 
[02:11.60]There also was a moment of silence at 10:03 a.m. 
[02:17.04]That was the time when a fourth hijacked plane crashed in western Pennsylvania. 
[02:24.24]All 44 people on the plane were killed. 
[02:28.04]Many Americans believe the hijackers 
[02:30.92]had planned to attack a target in the nation's capital.  
[02:36.04]The fourth plane came down in a field in the rural community of Shanksville. 
[02:41.56]Today, a new visitors center there 
[02:45.04]tells the story of the 9/11 attacks. 
[02:49.48]The Flight 93 National Memorial 
[02:52.40]was set up to recognize the passengers and crewmembers 
[02:56.36]who attacked the hijackers. 
[02:59.24]Stephen Clark is with the U.S. National Park Service. 
[03:03.44]It operates the visitors center and surrounding grounds. 
[03:07.68]"It just amazes me that this aircraft was 
[03:11.24]but 18 minutes away from hitting Washington, D.C."
[03:15.04]The field was quiet on Friday, 
[03:17.80]very different from the situation 14 years ago.
[03:22.44]Gordon Felt's brother Edward was one of the passengers  
[03:26.74]on United Airlines Flight 93 on September 11, 2001.   
[03:33.88]"It is surreal at times. 
[03:36.28]Early on, it became very evident to us very quickly 
[03:40.00]that our loved ones, the events surrounding their deaths, 
[03:44.67]had historical significance to our country."  
[03:48.60]The last 35 minutes of Edward Felt's life, 
[03:52.28]and others on the plane, 
[03:54.60]are explained at the new visitors center. 
[03:58.40]Relatives hope visitors to the memorial 
[04:01.24]will understand the full effect of the actions of their loved ones. 
[04:05.56]"They'll get a sense of who those 40 heroes were, 
[04:09.32]as well as what their collective actions did to help 
[04:12.96]save the Capitol building that morning."
[04:15.60]I'm George Grow.