Some Americans who were not subject to the draft protested the conscription of their tax dollars for the war effort. War tax resistance, once mostly isolated to solitary anarchists like Henry David Thoreau and religious pacifists like the Quakers, became a more mainstream protest tactic. As of 1972, an estimated 200,000–500,000 people were refusing to pay the excise taxes on their telephone bills, and another 20,000 were resisting part or all of their income tax bills. Among the tax resisters were Joan Baez and Noam Chomsky.