Reports in the Mexican press say that Francis is weighing a visit to the steel fence the U.S. erected along the Arizona border to keep out immigrants and drug smugglers — an event that would be reminiscent of his stop last month at the security wall that Israel built to separate it from the Palestinian territories. U.S. Catholic leaders celebrated Mass at the border in Nogales in April on behalf of immigration reform. The pope’s visit would come during his expected September 2015 trip to the U.S. MORE