If you are with the first part, you’d agree with the implied second part: it should be a simple memorial and should focus on the victims not on empire propaganda. This is what the museum has to say:

The terrorists did not have the capacity to destroy the United States militarily, so they set their sights on symbolic targets instead. The Twin Towers, as the centerpieces of the World Trade Center, symbolized globalization and America’s economic power and prosperity.

The Pentagon, as the headquarters for the U.S. Department of Defense, serves as a symbol of American military power. It is thought that Flight 93 was headed to the Capitol building, the center of American legislative government.

Al-Qaeda hoped that, by attacking these symbols of American power, they would promote widespread fear throughout the country and severely weaken the United States’ standing in the world community, ultimately supporting their political and religious goals in the Middle East and Muslim world.

That’s a very disgusting right wing take that ignores the actual motivations for the attacks, and denies the visitors the chance to reflect on what their country continues to support: worldwide terror.

It’s not worth saving in its current state.