As reported by Democracy Now! headline news:
The Guardian reports multiple agents from the FBI’s Joint Terrorism Task Force have been attempting to contact water protectors, sparking concerns the FBI may be investigating the indigenous-led movement as a form of domestic terrorism. Civil rights lawyer Lauren Regan said, "The idea that the government would attempt to construe this indigenous-led nonviolent movement into some kind of domestic terrorism investigation is unfathomable to me. It’s outrageous, it’s unwarranted … and it’s unconstitutional."
[See Democracy Now!'s regular reporting on DAPL and related matters, extending back many months.]