"Authorities built a blockade on the bridge using military equipment chained to concrete barriers, erected barbed wire, and posted ‘No Trespass’ signs.

"Police argue the bridge, which has been blocked for weeks, is unsafe due to earlier fires. Protesters argue blocking the bridge is dangerous, especially in an emergency."

http://axisoflogic.com/artman/publish/Article_75567.shtml

We don't know who these "authorities" are.  There are some in blue, some in brown and some sport camo.  We do know that after a court session where the Sioux presented a map showing where their sacred sites were located, the bulldozers were dispatched there to do damage.  Some of the land belongs to the Tribe.

And these "authorities" will get no support from me.  They are vicious corporate goons who should be arrested.  Besides all the violence waged against unarmed water protectors, "security" has cost $10 Million already. Besides, the pipeline permit has yet to be approved.