Historian Mark Hove has written that "Operation PBHistory proved ineffective because of 'a new, smoldering resentment' that had emerged in Latin America over US intervention in Guatemala."
Sejarawan Mark Hove menyatakan bahwa "Operasi PBHistory terbukti tidak efektif akibat munculnya 'kebencian baru yang membara' di Amerika Latin yang disebabkan oleh campur tangan AS di Guatemala."