Following the links in the OP one learns an ugly behind-the-scenes fact:
"...Buffy (St. Marie) says that few people recount the true history of
what happened on that day in history (the FBI siege at Wounded Knee)
"Who recalls that on that day one-eighth of the (Pine Ridge)
reservation was transferred in secret -- on that day.
It was the part containing uranium. That is what never
seems to be remembered."
"...The song is a also tribute to assassinated activist
Anna Mae Aquash, whose murderers remain at large. The
lyrics describe the act of the FBI in cutting off her
decomposed hands under the guise of identification.
"My girlfriend Annie Mae talked about uranium
Her head was filled with bullets and her body dumped
The FBI cut off her hands and told us she'd died of
Exposure
"
"Bury my heart at Wounded Knee
Deep in the Earth
Cover me with pretty lies
bury my heart at Wounded Knee."
http://bsnorrell.tripod.com/id99.html
Wow. Sometimes the evil and corruption is just staggering