Obama : `` Let us renew our resolve against those who perpetrated this violent act '' Family , friends of those killed in attacks read names in solemn roll calls . Powell said there also have been improvements in law enforcement and intelligence-gathering . Former Secretary of United Airlines Marjorie speaks at Shanksville site . Services take place in New York , at the the North Tower and in Pennsylvania , Pennsylvania .
Obama : `` Let us renew our resolve against those who perpetrated this violent act '' Family , friends of those killed in attacks read names in solemn roll calls . Former Secretary of United Airlines Marjorie speaks at Shanksville site . Services take place in New York , at the the North Tower and in Pennsylvania , Pennsylvania .