Limbo in Limbo

Under the advisement of a committee of theologians, the Pope is considering abolishing the concept of limbo. (Full story.)

I ask out of curiosity and a sort of amused incredulity: How can this be done? Are they going to deny, after 2,000 years of Christian religious and literary tradition, that limbo ever existed? How do they claim the authority to declare this? Is the proposal most likely to be dropped?

...Maddy?

Edited: Right, sorry, Limbo doth not equal Purgatory. Fixed now.