If no bill gets through committee, Frist has promised that his bill is going to be debated. Dingy Harry has promised a fillibuster of any bill that does not go through committee.
The process today is just a mad attempt to get something through by the end of the day. Specter is pushing hard to get this to the floor. Amendments will be made on the floor. The Senate version will go to conference. The House will not approve of anything that gives amnesty.