The two mortgage giants Freddie Mac and Fannie Mae — seized by the government September 7 before they went completely bankrupt, at a potential cost to taxpayers of more than $25 billion — have been in obvious trouble for much of the past five years — with criminal investigations, accounting scandals, firings, resignations, huge losses and warnings from the Federal Reserve that their huge portfolio of mortgage securities posed a risk to the overall financial system. But prior to this year, the watchdogs at ABC, CBS and NBC found time for only 10 stories on the financial health and management...