Here is my perspective: If far more Americans rejected or questioned the official government story and demanded a new investigation, we would get the mental reconstruction sorely needed to ensure that the government never again uses a false flag operation to advance a policy (wars in Iraq and Afghanistan) that would not otherwise receive public support, especially one that kills thousands of Americans, both civilians and soldiers.
That the reconstruction at ground zero in Manhattan has still not succeeded symbolizes that the wounds of 9/11 are not healed, which means that we still have some chance of demanding and discovering the full truth, regardless of how painful it is. The cost of a first-rate new investigation might be $50 million, far less than the billions of dollars to reconstruct the Manhattan site.
In the end, truth is more important than new buildings. Worse than a hole in the ground is a hole in our national soul. We need Congress to authorize and fund a new 9/11 investigation. The highly fragmented 9/11 truth movement must unite behind a political strategy to make this happen. The only reason to fear a new investigation is the likely unsettling finding that, indeed, the US government was a lot more than incompetent and negligent.