Increasingly concerned over treatment of African Americans, Luce was kicked off the campus newspaper after criticizing the racist policies of the influential Mississippi White Citizens Councils.

"[6] A little later he assumed editorship of Rights that was published under the Emergency Civil Liberties Committee and became chairman of Student Committee for Travel to Cuba by 1964[7] An organizer of the May 2nd Movement (M2M) antiwar protest in Times Square that resulted in forty-seven arrests in August 1964,[8] Luce engaged in a project to secretly store guns in New York City just before and during 1964 Harlem riots, in hopes of "fomenting riots, all as part of bringing on an armed insurrection that would lead to a new American civil war.

[19][20] Luce broke with the Progressive Labor Movement in 1965 over its rigid structure and harsh discipline, coming to the realization that they weren’t talking about liberty for anyone, and that the PLM leaders were instead saying: "We want power so that we can control the country ourselves!

[22] In his 1966 book The New Left, Luce gave other reasons for leaving the PLM, disclosing that he refused to "be a part of a movement based on deceit and illegal activities" and that he could no longer associate with "people desirous of destroying individual initiative, character, and the future of the membership.

"[27] During his anti-communist years, Luce appeared frequently on television and radio, spoke on college campus across the country, wrote five books, penned articles for nationally known journals, and engaged in almost legendary debates with Tom Hayden and Jerry Rubin in his efforts to decry the radical Left.

[30] He was editor for the bi-weekly Pink Sheet on the Left from 1971 to 1981, a Phillips Publications out of Washington, D.C. During the 1980s he founded and chaired the Americans for a Sound Foreign Policy, which was sued by atheist Madalyn Murray O'Hair in 1983 for the organization's claim that she sought to curtail U.S. military chaplain services, which she denied.