denverpilot
Tied Down
It is a dangerous feedback loop which leads to increasing insularity among individual alarmist cliques.
I believe the two worst cults (or as you put it, alarmist cliques, but they meet the definition of cult squarely and perfectly) are known by the initials R and D after politician's names.
Note lack of smiley. These two cults and their followers are quite a bit out of hand lately.