Smokescreen Blaming speculators for sovereign-debt woes is misguided. Banning them would be worse Mar 11th 2010 | From The Economist print edition GREECE had a budget deficit of 12.7% of GDP in 2009. It has a record of dodgy accounting. Its own leaders acknowledge how dire its fiscal situation is. George Papaconstantinou, the country’s finance minister, summed it up pretty well last month. “Peop..