International human rights groups have alleged that Israel irresponsibly used high-powered weapons in densely populated areas, causing up to 900 civilian deaths out of the 1,100 to 1,400 killed, per the articles. The Israeli Defense Force (IDF) has countered that only a quarter of those killed were civilians. They have also claimed that Hamas used human shields.
Some Twittered about the claims about soldiers' actions and a recent op-ed.
Others responded to the UN investigation.