Suit Puts Focus on Derivatives' Murky World.

Focuses on a lawsuit by Italian Banca Popolare di Intra against the Bank of America Corporation. Claim that the bank improperly sold and managed Intra's investment; Intra's alleged losses; How Intra's resolve to get its money back casts a new light on credit derivatives; Rise of the credit-derivatives market, including collateralized debt obligations; Highlights of the case; Why disputes between issuers and financial institutions that invest in the credit derivatives rarely become public; How credit derivatives have provided an important cushion to the global economy, and to the world's biggest banks that provide much of the corporate lending; Issue of public disclosure.