I think Andy’s post below is grossly over-fair to Pam Geller, and less than fair to the people who run the New York subway system.
It’s not “opponents of Israel” whom she characterizes as “savages,” but Arabs. The poster is at the moral level of the Jew-baiting cartoons in the Völkischer Beobachter.
That may not change the Constitutional situation; I take it Andy is right about that. But if the law really compels the MTA to transmit racist gutter speech, that strikes me as a bug, not a feature.
Not allowing a particular message to appear in the subway is not the same as censorship. Geller should be free to publish a newspaper full of such garbage, but the riders of the MTA should be free to ride without having her racism shoved in their faces. Certainly insofar as the MTA has a choice legally, I think the choice it ought to make is clear: it should refuse to take her money.
This strikes me as radically different from a poster making fun of Reagan, or of Obama, simply because political discourse – even at its crudest – is on a different level from racial slander.