According to Upsidedowndog's comments on Reddit, halfway through the flight, the woman “began to yell and ‘protest’...about the United State’s invasion of Venezuela, how the great Hugo Chavez was a friend to the USA, and how Obama kills people on Tuesdays.” Sounds legit.
Flight attendants reportedly told the woman if she didn’t stop shouting, they'd call the police to escort her off the plane. And when she didn't shut up, they did just that.
While waiting for police to arrive on the tarmac, the unruly flier started smoking and even tried to blame another passenger for the smoke. Which was lame, because at that point you might as well go all-in.