amy: in mexico, press freedom groups are demanding justice for jacinto romero flores, a radio reporter who was shot dead outside his home in the state of veracruz last week. he is at least the fifth mexican journalist murdered so far this year. romero was covering politics and crime and hadeportedly received threats after reporting on allegations of abuse by local police. mexican journalists are calling for an end to impunity. >> one of the main reasons why olence against journalists don't stop is the aggressors know they will remain unpunished. a lot of journalists, just as the ones gathere here, institutions have left us alone. government institutions don't protect journalists. amy: vice president kamala harris is in singapore as part of a southeast asian tour this week. harris addressed the unfolding crisis in afghanistan, saying the u.s. is focused on evacuation efforts. the visit, which was planned before recent events in afghanistan, aims to strengthen u.s. ties with regional powers that could help stem china's influence. harris will travel to vietnam tuesday, becoming the first