Your comment: To date none have been able to.
I disagree. There has been many postings about those subjects.
Do your homework and I am sure that you can find detailed information if you are seeking the Truth.
Salvation has many links that will help you understand the teachings of the Catholic Church, along with many other Catholic links.
http://www.freerepublic.com/~salvation/
When I say none have been able to, I mean using the Word...taken in context and with its historical background taken into consideration. Not catholic talking points. Not reading something into the text that's not there.
Again, to this date, none have been able to.
Are they the INFALLIBLE teachings of your church...or do they contain one mans opinion ?
If they are the infallible teachings the magisterium please cite the source material
If there are no direct scriptural sourcing and no direct magisterium sourcing then my friend that are all one mans personal opinion