Rorate Caeli: Pope Francis: "Bishops, Enough with Congresses, Conferences and Travels! The Decrees of Trent must be obeyed: a Bishop must truly reside in his diocese."
The solution is not to abolish national episcopal conferences (though the concept may need to be re-examined and the existence of some is questionable, i.e. that of the United States, since the United States was not formed as a unitary nation but as a federation of polities). Rather, local synods may need to be the ideal (Bavaria, not Germany), guided by a better understanding of a more humane scale of travel and interaction (as well as group identity).