In other words, the U.S. government dove into the bloody swamp of terrorism even as it was condemning other parties of engaging in terrorism. But the moral morass that was Lebanon, circa 1982-85, is not what Friedman and other U.S. propagandists describe when they smear Iran as some particularly evil force. Nor does Friedman operate with an objective definition of terrorism.
As Colin Powell recognized, once the United States joined the Lebanese civil war as a belligerent, U.S. troops became legitimate targets for retaliation. As much as one may lament the deaths of 241 U.S. personnel (or any deaths for that matter), it was not an act of "terrorism."