Al-Quds city (Jerusalem), January 30, SPA -- U.S. President Barack Obama'sMiddle East envoy warned on Friday of setbacks to come in thesearch for peace between Israel and the Palestinians, Reuters reported. "The tragic violence in Gaza and in southern Israel offers asobering reminder of the very serious and difficult challengesand unfortunately the setbacks that will come," George Mitchellsaid in Jerusalem.--SPA www.spa.gov.sa/630968