He is back , and it hasn 't . - President-elect Barack Obama has said little about his plans for Fannie Mae and Freddie Mac , but a top adviser and contender to Treasury Secretary already has a plan to break up the companies . - One of the big problems with [ mortgage-backed ] securities could be called the " Russian roulette " issue ... .Few of us would play Russian roulette , even if the odds were wildly in our favor , because it is a game no one can lose twice .