In 60 Seconds - MEXICO: President Enrique Peña Nieto has proposed a package of constitutional reforms. <br />COLOMBIA: Negotiators from both the government and FARC rebels met again on Tuesday to discuss the possibility of a final round of peace talks before the end of the year.<br />VENEZUELA: Outgoing Uruguayan president Jose Mujica is visiting his venezuelan counterpart Nicolas Maduro.<br />ECUADOR: The port city of Guayaquil is host to an international meeting of the Union of South American Nations.
