Defeated in the court of law and the court of public opinion, liberals now promise to fight the Keystone XL Pipeline by another means.

Domestic terrorism.

Should we take their threats seriously?  The FBI and recent attacks on the Dakota Access Pipeline say yes.

TransCanada, owner of the Keystone Pipeline, has already received threats from liberals to “blow up” the pipeline, according to a presentation from FBI anti-terrorism officials.

Canadian officials have even established a special anti-terrorism unit simply to deal with threats to oil and gas facilities.

“The integrated national security enforcement team will be led by the RCMP (Royal Canadian Mounted Police) and include officers from CSIS, the Edmonton and Calgary police forces and federal border patrol,” Canada’s National Post reports.

“We are basically looking at any individuals or groups that pose a threat to critical infrastructure, to our economy, to our safety that is based on either religious, political or ideological goals,” said RCMP Assistant Commissioner Gilles Michaud.

The special team was prompted due to a history of liberal terrorism against oil and gas facilities.

In 2008 and 2009, natural gas wells and pipelines in British Columbia were targeted in a series of six terrorist bombings.

Environmentalist Wiebo Ludwig was arrested for the crimes, but died of cancer without being convicted.  He had been previously convicted for a series of eco-terrorist bombings in the 1990s.

Here in the United States, liberal eco-terrorists have already committed acts of sabotage against the Dakota Access Pipeline project, using blowtorches to try and burn holes in the pipe just days before it was scheduled to begin transporting oil.

Little did Americans know that when liberals claimed the Dakota pipeline would result in massive oil spills, it would only be because liberals tried to cause the spills themselves.

Thankfully the sabotage was spotted before the pipeline went functional.

In one previous case, liberals sought to shut down a pipeline by forming a literal torch-wielding mob, which marched on and swarmed the home of Houston energy executive Mark Maki.

The liberal protest mob who, again, were literally holding flaming torches, waved signs that read “Solidarity Means Attack.”

So it should come as no surprise that anti-Keystone activists are embracing even more violent rhetoric and promises.

In a videotaped interview with anti-Keystone protesters massed on the National Mall, conservative activist Marc Morano asked one protester to clarify his banner which read “We Will Dismantle The Pipeline”:

Morano: You’re not endorsing dismantling physically, a violation of the law, or any kind of ecoterrorism, are you?”

Protester: “It depends on the circumstances.”

Morano: “That’s not out of – it’s a possibility, right?”

Protester: “By any means necessary means by any means necessary.”

As Morano began speaking to the protester, another jumped in to praise the banner as “an unveiled promise.”

“It’s not surprising that anti-pipeline extremists are getting physical. They’re losing,” Ron Arnold, author of “EcoTerror: The Violent Agenda to Save Nature”, tells the Committee For A Constructive Tomorrow.

“They’re desperate, so they escalate to threats and violence. And groups like the Sierra Club are endorsing them! This is the same pattern as the epidemic of eco-terrorism I worked against back in the 1990s. There was a federal terrorism research project I was in to stop escalation, sabotage, and bombings. It’s happening again,” said Arnold.