Turns out the Soviets weren't the only guys editing their history back in the bad old days.
Passages from Thomas Jefferson's private papers thrilling over his realization that the real profit in slavery was from keeping his female slaves breed regularly were deliberately edited out of the printed version published in the 50's and lay unnoticed in the archives until 2005.
Scholars are just now piecing together how his attitude toward slavery changed once he figured out how much money he could make from breeding more slaves and how brutal life was for them on his plantations. Jefferson even refused a large inheritance from his friend Kosciusko because he specified it was to be used to purchase the freedom of slaves and provide them with farms in the Mid-West.
Jefferson went so far as to caution his overseers not to allow the need for female labor to interfer with the more lucrative job of having a child every 2 years.
Here's an article from the Smithsonian setting out the truth. Kinda popped my balloon about Jefferson.