Thirty one of the Congress critters that are quizzing Toyota took campaign contributions from the UAW. Why is that important? Mainly because the UAW and the US Government are major stockholders in General Motors, and the UAW has for years unsuccessfully tried to organize the workers at Toyota.
Don't think the lawyers at Toyota don't know about this conflict of interest. Sure, they've got their own problems with the accelerator, but they're being grilled by folks with a huge conflict of interest.