MARGARET WARNER: Now, for more on what happened today, we’re joined by NewsHour regular Stuart Taylor, senior writer with National Journal and contributing editor of Newsweek.

Stuart, why are these two states arguing over this? I mean, doesn’t the federal government actually own and operate the museum on the land there?

STUART TAYLOR, National Journal: Yes, it exerts total control. New York does collect about $500,000 a year in tax revenues from concession stands that are in the historic part, but this dispute, as the deputy assistant solicitor general suggested for the United States and the argument today has little to do with practical consequences and a lot to do with perhaps symbolism, bragging rights over this historic immigration gateway. It has a lot to do with the territorial imperative. In fact, The New York Times gave an interesting example–an editorial which we were reminded of courtesy of The Washington Post this morning–in whichThe New York Times said, "New Jersey’s attempt to snatch Ellis Island is unfriendly, unbecoming, un-American, untoward, unhelpful, unprincipled, unseemly, unwarranted, and underhanded," to which a New Jerseyian might add "and right."

MARGARET WARNER: So taxpayers might ask, why is the Supreme Court taking its time with this?