Attorneys for Jon Corzine and other former MF Global officials have an "urgent need" to tap the company's insurance money to continuing defending themselves against a deluge of litigation tied to the brokerage's collapse, Dow Jones Daily Bankruptcy Review reported today. More than a dozen former directors, officers and employees of MF Global Holdings and its defunct brokerage on Tuesday filed a letter urging a bankruptcy judge to let them draw additional insurance proceeds, which a pending legal battle has blocked them from tapping for almost a year.