Colombia's president has dismissed Washington's decision to cancel his visa, saying "revoking it for denouncing genocide shows the US no longer respects international law".It comes after the state department announced on Friday it would cancel Gustavo Pedro's visa over "incendiary actions" at a pro-Palestinian demonstration in New York. Speaking outside the United Nations on Friday, Mr Petro called for a global armed force with the priority of liberating Palestinians.Mr Petro, who appeared at the rally alon ...