So, you are jumping to conclusions in order to find support for your belief that Barack Obama is the anti-Christ. You are more than welcome to this belief. Just don't tell me I'm ignorant or stupid or immature for disagreeing with you.
Well said that man.
Buzz is allowing the negative bias in his thinking prescribe the conclusion he reaches. As these conclusion cause him distress he selectively attends to the information he percieves as confirming said conclusions (and therfore causing him to worry and ruminate).
This kind of distorted thinking can be very entrenched but (just like smoking) is a habit you can quit if you have the courage.