From the foxnews post:
Hunting "is just a wonderful opportunity for someone who would want to do a terrorist act," Muller said. "They don't have to report their whereabouts and can be lurking anywhere. They can lurk in groups."
What if we changed one word from Muller's quote?
"Activism is just a wonderful opportunity for someone who would want to do a terrorist act,"Muller (could just as easily have) said. "They don't have to report their whereabouts and can be lurking anywhere. They can lurk in groups."
And enter buildings, chain themselves to various fixtures and each other disrupting normal trade and commerce or government functions. Harrass employees and the public possibly making citizens fear for their lives. Or break into labs destroying research materials and equipment releasing animals infected with possible contagious diseases, etc. ....