Guatemala's President Otto Pérez Molina has performed an unexpected volte-face by ditching his campaign stance of opposing drug legalisation and proposing an early top-level debate on the matter with a view to arriving at a regional consensus. He will take the issue to a Central American summit in March, and later to the Summit of the Americas in Cartagena, Colombia, on 14-15 April. Pérez Molina aired the proposal on 9 February during a visit by his Salvadorean peer, Mauricio Funes, who said at a joint press conference that he was open to considering legalisation — only to reverse his stance…