they could probably do it anyway, but intuit lobbied against it:
http://www.propublica.org/article/turbotax-maker-linked-to-g...
http://www.propublica.org/article/turbotax-maker-linked-to-g...
All this foaming at the mouth and finger pointing only makes things worse.
The IRS should be able to prefill all of your taxes for you, and allow you to click Submit. But you should be able to change/add info, if you have supporting documentation. There is no reason Intuit and other businesses should need to exist to provide tax preparation services.