There's LOTS of things that are NOT on the "worldwidewierd" for a whole variety of purposes, including "covering up for" the DY atrocities committed during TWBTS. = You, for example, won't find on the Internet that the DYs at Point Lookout DEATH CAMP at Point Lookout, MD murdered at least 15,000 helpless POWs either but the US Army's POW Center states that it's FACT.
(FOUR of those "mysteriously disappeared" CSA soldier boys were members of our family & their names are on the monument to the murdered POWs.)
IF you were a CSA service-member & became "a guest of the DYs" AND you were Asian, Black, "Foreign-born", Hispanic, Jewish, Native American and/or Roman Catholic, your chances of surviving "captivity" were near ZERO.= To quote the Commander of PLPOWC, "They just were not worth feeding."
NOTE: The term, "Concentration Camp" was first used by a MAJ of the Fourth King's Hussars (out of Prussia), who was a "foreign military observer" with the Union Army. The Major's official report states, "This Concentration Camp is obviously intended to cause intentional death to captives of the Army, by means of denial of food, shelter and necessary medical care. Death oft-times death comes to the prisoners by bayonet, bullet, beatings and drowning." and later, "Should this war long continue, none of the inmates will likely survive their confinement".
Some things that you can look up with a search engine are: PORTALS TO HELL, MANGAS COLORADOS, THE UNCIVIL WAR, TO DIE IN CHICAGO, BURY MY HEART AT WOUNDED KNEE, AUSCHWITZ IN MARYLAND, RED OVER BLACK, SAMUEL MUDD & BLACKS IN BLUE AND GRAY.
(Using those "terms"/titles to search "the www" will quickly reveal a great deal of information that is "unsuitable for the pre-bedtime entertainment of children" & "may cause sleeplessness and nightmares".)
just my OPINIONS, satx