Is Scientology the established church of the U.S. government?

That's the issued raised by judges in the Ninth Circuit hearing the appeal in Sklar v. Commissioner:

A Jewish couple's bid to take a tax deduction they say the Internal Revenue Service reserves only for members of the Church of Scientology is getting a friendly reception from a federal appeals court, increasing the possibility of a ruling that could create a tax break for taxpayers of many religions who pay tuition to religious schools.

During arguments on the case this week, three judges who ride the 9th Circuit Court of Appeals expressed deep skepticism of the IRS's position that the way the agency treats Scientologists is irrelevant to the deductions the Orthodox Jews, Michael and Marla Sklar, took for part of their children's day school tuition and for after-school classes in Jewish law.

"The view of the IRS is it can unconstitutionally violate the Constitution by establishing religion, by treating one religion more favorably than other religions in terms of what is allowed as deductions, and there can never be any judicial review of that?" Judge Kim Wardlaw asked at the court session Monday in Pasadena, Calif.

"That is not at all what I said," a Justice Department lawyer representing the IRS, Ellen Delsole, said.

"That's the bottom line," Judge Wardlaw and a colleague on the panel, Harry Pregerson, both replied. "This does intrude into the Establishment Clause," Judge Wardlaw added.

For an explanation of how this mess came about, check out the whole article.