Actually, most of the recent government activity has been in response to
The Colgan Air crash in Buffalo, NY. Legislators are all shouting over each other for changes to rest rules that will be aimed more at inconveniencing commuters than addressing pilot fatigue. There is little hope on our end that they will produce laws that will actually improve the situation.
Oh, and for a laugh, feel free to peruse
The Pilot Professionalism Assurance Act, their genius response to the Northwest Airlines aircraft falling out of radio contact for an hour. It should give you an idea of the general aim of future aviation-related legislation.