I would not recommend my methodology to most people. Looking at every single document you can find about a given topic is overwhelming, and I spent more time each week taking notes on these documents than I do at my full-time job. My hobbies include watching TV (while taking notes), reading (books about the 1940s), and sleeping (while I dream about visas and microfilm).
BUT, by looking at every tree in the forest, you sometimes find things that no one else has seen, or at least, that no one else might have noticed before. There is a series of Censorship reports related to the Haitian consul general in Paraguay, Raúl del Pozo Cano. Cano used his position to send Haitian papers to Poland to refugees to use as protective papers. Eventually, the Haitian government told the WRB that they would not recognize these papers, which were issued fraudulently by their own diplomat, and US Censorship is not pleased about Cano’s actions. But still, Cano sent hundreds of these, which may have saved lives (it’s hard to tell). Either way, he’s not mentioned anywhere in the literature of the Holocaust as doing this. But he did.