The problem is, Congress cannot single out Terri Schiavo for special treatment. That’s a Bill of Attainder, and it’s unconstitutional. Below is a blurb I found on google about that. It could also be considered an ex post facto law, also unconstitutional:
http://www.lectlaw.com/def/e086.htm
EX POST FACTO CLAUSE - A misnomer in that actually two Constitutional clauses are involved. The U.S. Constitution’s Article 1 Section 9, C.3 states: ‘No Bill of Attainder or ex post facto Law shall be passed,’ and Section 10 says: ‘No State shall enter into any Treaty, Alliance, or Confederation; grant Letters of Marque and Reprisal; coin Money; emit Bills of Credit; make any Thing but gold and silver Coin a Tender in Payment of Debts; pass any Bill of Attainder, ex post facto Law. . . .’
The ‘words and the intent’ of the Ex Post Facto Clause encompass ‘very law that changes the punishment, and inflicts a greater punishment, than the law annexed to the crime, when committed.’ Calder v. Bull, 3 U.S. (1 Dall.) 386, 390 (1798) (opinion of Chase, J.).
An ex post facto law is a law passed after the occurrence of an event or action which retrospectively changes the legal consequences of the event or action.
http://www.techlawjournal.com/glossary/legal/attainder.htm
Bill of Attainder
Definition: A legislative act that singles out an individual or group for punishment without a trial.
The Constitution of the United States, Article I, Section 9, paragraph 3 provides that: “No Bill of Attainder or ex post facto Law will be passed.”
“The Bill of Attainder Clause was intended not as a narrow, technical (and therefore soon to be outmoded) prohibition, but rather as an implementation of the separation of powers, a general safeguard against legislative exercise of the judicial function or more simply - trial by legislature.” U.S. v. Brown, 381 U.S. 437, 440 (1965).
“These clauses of the Constitution are not of the broad, general nature of the Due Process Clause, but refer to rather precise legal terms which had a meaning under English law at the time the Constitution was adopted. A bill of attainder was a legislative act that singled out one or more persons and imposed punishment on them, without benefit of trial. Such actions were regarded as odious by the framers of the Constitution because it was the traditional role of a court, judging an individual case, to impose punishment.” William H. Rehnquist, The Supreme Court, page 166.
“Bills of attainder, ex post facto laws, and laws impairing the obligations of contracts, are contrary to the first principles of the social compact, and to every principle of sound legislation. … The sober people of America are weary of the fluctuating policy which has directed the public councils. They have seen with regret and indignation that sudden changes and legislative interferences, in cases affecting personal rights, become jobs in the hands of enterprising and influential speculators, and snares to the more-industrious and less-informed part of the community.” James Madison, Federalist Number 44, 1788.
Supreme Court cases construing the Bill of Attainder clause include: Ex Parte Garland, 4 Wallace 333 (1866). Cummings v. Missouri, 4 Wallace 277 (1866). U.S. v. Brown, 381 U.S. 437 (1965). Nixon v. Administrator of General Services, 433 U.S.425 (1977). Selective Service Administration v. Minnesota PIRG, 468 U.S. 841 (1984).
See also, SBC v. FCC.