A quick perusal of the LinkedIn profile of “clinical psychologist” Shidlo pretty well indicates that he’s an activist, not an objective researcher. Doubtless the same applies to his study partner, and I use the word advisedly.
Michael J. Schroeder is an independent scholar who has taught U.S. and Latin American History at Eastern Michigan University and the University of Michigan-Flint. He received B.A.s in History and Economics at the University of Minnesota and his Ph.D. in History at the University of Michigan. He is the author of numerous articles and chapters on Nicaraguan history, including pieces on death squads, children and war, the question of aerial terrorism in the air war of the 1920s and 1930s, and his award-winning 1996 article in the "Journal of Latin American Studies", "Horse Thieves to Rebels to Dogs," on Nicaraguan political violence. He is currently completing his book manuscript, "The Sandino Rebellion: Tragedy and Redemption in the Mountains of Northern Nicaragua". He has also authored a middle school text on Mexican-American history and immigration and is co-editor of "Encyclopedia of World History".
Hey, sounds qualified to me, sure.