NY Times: When injustice aligns with cruelty, and heavy weaponry is involved, the results can be shameful and bloody. Witness what happened on Sunday in North Dakota, when law enforcement officers escalated their tactics against unarmed American Indians and allies who have waged months of protests against the Dakota Access oil pipeline. They drenched protesters with water cannons on a frigid night, with temperatures in the 20s. According to protesters and news accounts, the officers also fired rubber bullets, pepper spray, percussion grenades and tear gas. More than 160 people were reportedly injured, with one protester’s arm damaged so badly she might lose it.