U.S. Missed Chance to Stop Greek Negotiation Breakdown

``Doyle [former IMF Senior Manager] argues that the U.S. should have stopped the creditors from sending back Greece's latest proposal covered with redlined changes on June 24 and then leaking it to the media. The way the counterproposal was made was widely seen as humiliating to Greece. Moreover, it did not offer any new concessions on debt relief, pension reforms or increases in the value-added tax. Greece reacted furiously to the counterproposal, beginning a downward turn that culminated Saturday in Greece's withdrawal from the talks and announcement of the referendum.''