"I just read "Dominus Iesus" and it absolutely contradicts everything Mershon posted from the past 1800 years."
No it does not. Dogmas that are defined are always true in all times and circumstances. You have no idea what you are talking about.
Dominus Iesus absolutely indicates that salvation can be found outside the Roman Catholic Church. It goes into great detail how and why this is so.
I encourage everyone to read it and then compare it to the precise statements of the many Popes. Clearly...the two cannot be considered of the same mind.
Dominus Iesus = New Rome. It was written by a man (Cardinal Ratzinger) who publicly doubts the historicity of the Resurrection. Draw your own conclusions.