The 9/11 death toll of nearly 3,000 people, along with more than 6,000 wounded, is well known.
Officially, 2,977 were killed, not including the 19 Islamic terrorists who carried out the attacks.
The immediate deaths included 246 on the four planes, 2,606 in New York City and 125 at the Pentagon.
But the toll actually is higher and continues to mount.
More than 2,000 first responders have died from diseases related to the toxic fumes and dust at Ground Zero in New York City.
Thousands more, perhaps as many as 10,000 people, have been diagnosed with 9/11-related diseases such as cancer and severe respiratory disease.
And President Trump paid homage Tuesday at a memorial service in Shanksville, Pennsylvania, to the nearly 7,000 service members who have “died facing down the menace of radical Islamic terrorism.”
Passengers on Flight 93 prevented terrorists from carrying out their plan to ram the plane into a target in Washington, D.C., possibly the U.S. Capitol or White House.
“A piece of America’s heart is buried on these grounds, but in its place has grown a new resolve to live our lives with the same grace and courage as the heroes of Flight 93,” Trump said. “This field is now a monument to American defiance. This memorial is now a message to the world. America will never, ever submit to tyranny.”
Trump also said that since 9/11, nearly 5.5 million Americans have enlisted in the armed forces.
“Today, we also think of the more than 200,000 service members now serving overseas and we think of every citizen who protects our nation at home, including our state, local and federal law enforcement,” the president said.
“These are great Americans. These are great heroes. We honor and thank them all.”