A retired Roman Catholic bishop who was famous for trying to mediate between drug cartels in Mexico was located and taken to a hospital after apparently being briefly kidnapped, the Mexican Council of Bishops said Monday. In Mexico, regular kidnappings are often lengthy affairs involving long negotiations over ransom demands. “Express” kidnappings, on the other hand, are quick abductions usually carried out by low-level criminals where ransom demands are lower, precisely so the money can be handed over more quickly.