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Some are unmoved by the revelations of waterboarding of two terrorist suspects.

A high-ranking Italian official said that while the matter was ''delicate,'' since the Italian judiciary prides itself on its independence from political authorities, the arrest coincided with the Government's tougher line. ''It's indicative of the new attitude,'' the official said. ''The climate is changing, and this is a move in that direction.'' Tougher Line Urged Shortly after Mr. [Daghugh]'s arrest, Mr. [Mohammed Fituri], described by a spokesman for Mr. [Bettino Craxi] as an administrative clerk at the Libyan People's Bureau, was expelled from Italy. But he returned here, without diplomatic immunity, to work for the Libyan investment company. The Libyan state company's holdings include a 13 to 15 percent stake in Fiat, Italy's most important industrial company. Mr. Craxi's spokesman, Antonio Ghirelli, said Mr. Fituri and Mr. [Mahmud Werfalli] were allowed to leave Italy because embassy employees are ''normally not arrested, but expelled.'' The United States has repeatedly charged that Libyan diplomats use diplomatic immunity as a cover for terrorist activities. Charges Are Dismissed

''There are no minor accomplices,'' Mr. [Luigi Carli] said. This evening Mr. Carli said judicial secrecy laws prevented him from confirming whether Mr. [Mohammed Abbas] was among those cited. Earlier today when he was asked by reporters at his office in Genoa if the 16 arrest warrants included warrants issued last month by prosecutors in Sicily, Mr. Carli said, ''We have issued new ones and we have integrated others.'' Mr. Abbas's release infuriated the United States and led indirectly to the collapse of Prime Minister Bettino Craxi's Government. The Government has since been resurrected.

The report by the Genoa magistrates, who said in March that they would bring Mr. [Mohammed Abbas] to trial as the leader of the hijackers, said he had ''created the action, chose the perpetrators, trained them for their particular task, gave the orders to the 'commando.' '' ''This case falls within the struggle of the Palestinian people,'' the report says. The Palestinians, ''having lost their own land, intend to carry out a struggle to reconquer their national territory and end the disastrous (and, at times, inhuman) effects of the new diaspora.'' The report repeatedly distinguishes Mr. [Yasir Arafat]'s policies from those of Mr. Abbas and his Palestine Liberation Front. ''The method of Arafat's struggle,'' the prosecutors said, ''is that of not bringing military episodes beyond the territory of Palestine in order not to run the risk of being accused of 'terrorism,' repudiated by patriots but necessarily attributed to them by those states against which acts of violence occur.'' The prosecutors appeared to be referring to Israel.