NEW YORK (Reuters) - In a rare criminal prosecution to emerge from the financial crisis, two former Credit Suisse traders admitted on Wednesday to conspiring to manipulate the value of about $3 billion in subprime mortgage-backed securities in order to hide losses as the U.S. real estate market began to collapse in 2007. The men, London-based David Higgs, 42, and Salmaan Siddiqui, 36, of McLean ...