Whether General Motors and Chrysler continue getting billions of dollars in federal loans is the question facing government officials as they prepare to review the "viability plans" from the ailing automakers as part of the terms of their bailouts.   The car companies must submit their proposals by 5 p.m. today to James Lambright, chief investment officer for the Troubled Asset Relief Program.  Under the terms of their federal loans, GM and Chrysler must submit plans to show how they are using taxpayer dollars to become viable businesses.

