Independent group slam Mexico AG's missing students probe Mexico's Interdisciplinary Group of Independent Experts reacts to a press conference given by Mexico's Attorney General on the follow-up investigation on the disappearance of 43 students, slamming Mexican officials for acting unilateraly and against independent experts' opinion. They threatened to cut ties with the Attorney General's office if they do not clarify the results of new analysis performed on a trash dump where Mexical state officials say at least some of the students were incinerated. IMAGES AND SOUNDBITES