Since about July or August of 2015 up to now Nov 2016 Pope Francis has spoken a couple times about gossip, which he has explained is a form of terrorism. But, I haven’t as yet found a copy of any of these talks. You can search for yourself in the document library at
ewtn.com
Prophecy: Referred to in Chap 14 of 1 Co as a virtue that we should earnestly seek, the Catechism doesn’t define that, either. And, I’ve never heard or don’t recall ever hearing a prayer for this gift during the Prayers of the Faithful at Mass. And, you’d think this would be important for the ‘new evangelization.’