Catsam, Derek Charles. Flashpoint: How a Little-Known Sporting Event Fueled America’s Anti-Apartheid Movement. Lanham, MD: Rowman & Littlefield, 2021. Pp. xxviii + 213. 10 unnumbered pages of plates and index. $34.00 hardcover, $32.00 e-book. Reviewed by Tony Calandrillo In Flashpoint: How a Little-Known Sporting Event Fueled America’s Anti-Apartheid Movement, Derek Charles Catsam, Professor of History…