The most accurate response regarding the aftermath of the Sand Creek Massacre is:
The U.S. government came to condemn the incident because so many women and children were murdered.
This event, which occurred in 1864 when U.S. forces attacked a peaceful Cheyenne and Arapaho village, led to a public outcry and condemnation from various quarters, including some in the government and the media, given the brutal nature and the targeting of women and children.