Germany’s second largest state-owned bank is looking to the U.S. courts for relief after accusing Deutsche Bank of perpetuating a fraud on it in the sale of over $810 million in toxic residential MBS. Last week, Bayerische Landesbank (BayernLB) filed suit against Deutsche in New York State Supreme Court in Manhattan alleging that Deutsche packaged risky and poor quality loans into securities while simultaneously taking short positions against the securities. According to the complaint, Deutsche officials internally disparaged the quality of the loans underlying the residential MBS even as it...