Pope Francis to Hold Double Canonization

Here's a great clip from the PBS News Hour about Pope Francis's decision to canonize Pope John XXIII who served from 1958 to 1963 and Pope John Paul II, who served from 1978 to 2005.

How does a Pope get canonized? Does he really have to have performed two miracles? Don't popes usually canonize only one pope at a time?

News Hour religion reporter, Rachel Zoll, answers all these questions int this short interview.