If, on September 5, 2001, Zacarias Moussaoui had called the F. B. I. and told what he knew, he'd now be 4 years into a life of freedom, with an annuity and a new identity.
And if one of the 19 had, he'd also be rich, renamed, and not just vapour.
Future conspirators should always remember that there is a really good escape hatch. We WILL make it worth your while to save your own life and the lives of innocents.
No one has said this as far as I know. and it should have been trumpeted loudly.