i'd hate to see the heavy handed janet reno approach. many children died in that hot mess of chaos - i don't think anyone alive knows the whole story of waco... 
.  this pipeline is strongly opposed by the local native american tribes who have rights to the land.  that were pushed onto to it after being pushed out of a different land deemed worthless by the whites. in a previous uprooting. as soon as the land became significant for what ever reasons - push those native settlers out again. i think they have a point. 
    care needs to be taken, and err on the side of wait them out passively.   to stop what looks to be ugly - i say lay siege - 100% tight. jam cell phones and stop all internet connectivity. cut off supplies. allow no one across the line unless it's someone coming out- not like the so called border around the occupiers at malhuer - cut it all off. make voluntary surrender the only option -no aggression from the feds or anyone else.