there should be "considerable transitional periods as well as a permanent safeguard clause". He was cautious on the question of the inevitability of Turkish membership, stating that he did not "believe in historic determinism", but that if negotiations were begun, "underpinned by the commitment that [Turkey] will be able to join [the EU] once it fulfils all conditions, it will join as soon as it does meet the conditions". He insisted that Bulgaria and Romania would be judged on their merits and that he would not hesitate to delay accession by a year if the EU's requirements were not met on time. He considered the establishment of a pre-accession strategy for the Western Balkans one of his prime tasks. European sovereign debt crisis In late June 2011, Rehn spoke out on austerity measures being considered by the Greek parliament, saying, "The only way to avoid immediate default is for parliament to endorse the revised economic program...The program includes both the medium-term fiscal strategy and the privatization program. They must be approved if the next tranche of financial assistance [a 12 billion euro aid payment] is to be released...To those who speculate about other options, let me say this clearly: there is no Plan B to avoid default". In May 2012, coincident with warnings from Mario Draghi of the ECB, Rehn said that even if Eurobonds "were ever approved, it would still not be sufficient to save the euro. The single currency’s members needed 'a genuine stability culture and a much upgraded common capacity to contain common contagion', if they wanted to avoid a disintegration of the eurozone and if they wanted it to survive". Rehn has continued to maintain that the only way out of the crisis is a continued programme of fiscal austerity. Economist Paul Krugman has been critical of this stance, saying in early 2013 that Olli Rehn, and the economic management of the European Commission, had been proven disastrously wrong in their predictions and management since the beginning of the crisis. He noted, "European leaders seem determined to learn nothing, which makes this more than a tragedy; it’s an outrage." Krugman maintains that Rehn's focus on fiscal discipline is in fact an excuse to dismantle the social safety net and reduce the size of government, as he has criticized countries, such as France which have tried to achieve fiscal discipline through tax increases. In mid-2013, Rehn claimed