From Our Own Correspondent

Young Mexicans preparing to join the priesthood don't only have to struggle with matters of mortal sin or individual guilt. They are also often sent to serve communities where the country's drug-trafficking networks are highly active - and extremely violent. Will Grant spoke to some of the men who must run the deadly risks of ministering in 'cartel land'.The regional rivalry between Saudi Arabia and Iran has driven events across the Middle East in recent decades - with the two powers backing opposing sides in the conflicts in Lebanon, Syria, Iraq and Yemen. Recently, Riyadh and Tehran agreed to re-establish diplomatic ties, but as Sebastian Usher explains, even as some red lines shift, the limits on public debate at home are still very much in force.The Chaco region of Paraguay was once called 'the green hell' for its spiky, almost impenetrable scrubland. It's now opening up to the outside world, thanks to a new highway called the Bi-oceanic Corridor. Some communities living in the Chaco - like the Mennonite