CUBA: Colombian 31st peace talks cycle ends. MEXICO: The Federal Government denies being involved in the disappearance of the 43 Ayotzinapa students after a damning report revealed otherwise. USA: President Obama is expected to approve new sanctions against Russia due to the Ukraine crisis. UNITED NATIONS: The UN Security Council will hold a session today regarding the crisis in the Middle East. PAKISTAN: Pakistan lifted a moratorium on the death penalty after Taliban gunmen attacked a school killing 132 children and nine teachers.