NEW YORK (CBSNewYork) – Despite the Metropolitan Opera’s decision to cancel the simulcast of a controversial opera, there is still anger and unease surrounding the Met’s plans to put on the performance at the opera house this fall.

As WCBS 880′s Peter Haskell reported, canceling the simulcast wasn’t enough for some. Morton Klein, of the Zionist Organization of America, said the show at the Met should not go on.

“‘The Death of Klinghoffer’ is a play that is filled with ugly, anti-Semitic propaganda lies,” Klein said. “It humanizes and romanticizes and even legitimizes the murder of innocent Jews.”

Klein said he wants donors to close their wallets if the Met is unresponsive to the demand to cancel the fall performance.

“Donors should say, we want nothing to do with this filth,” Klein said.

The head of the Metropolitan Opera insists the play, which depicts the 1985 hijacking of the Italian cruise ship Achille Lauro and the murder of disabled Jewish passenger Leon Klinghoffer, is not anti-Semetic.