Over the next few days, leaders of the Catholic church from around the world will gather at the Vatican to mourn — and also, to prepare for the Conclave.

The man remembered today at a funeral in St. Peter's Square, Pope Francis, was once very different. Scott Detrow is a White House correspondent for NPR and co-hosts the NPR Politics Podcast.

Thousands were in Rome to witness the funeral of Pope Francis.

Fueling Knowledge is a two-part series from the W-W-N-O and W-R-K-F podcast Sea Change, produced with Floodlight and the Louisiana Illuminator.