Let's have some precision in language here: terrorism means deadly violence -- for a political and/or economical purpose -- carried out against people and other living things, and is usually conducted by governments against their own citizens (as at Kent State, or in Vietnam, or in Poland, or in most of Latin America right now), or by corporate entities such as J. Paul Getty, Exxon, Mobil Oil, etc etc., against the land and all creatures that depend upon the land for life and livelihood. A bulldozer ripping up a hillside to strip mine for coal is committing terrorism; the damnation of a flowing river followed by the drowning of Cherokee graves, of forest and farmland, is an act of terrorism.Sabotage, on the other hand, means the use of force against inanimate property, such as machinery, which is being used (e.g.) to deprive human beings of their rightful work (as in the case of Ned Ludd and his mates); sabotage (le sabot dropped in a spinning jenny) -- for whatever purpose -- has never meant and has never implied the use of violence against living creatures.
Edward Abbey, Postcards from Ed: Dispatches and Salvos from an American Iconoclast
sabotage, terrorism