Edited sentence: "The liberals are crazy."These people (terrorists) are cowards who only strike where we are weakest and when they have a minimal chance of being caught.(This sentence also contains another fallacy, using the word "they" twice to imply it is the same exact set of people previously talking about cooling that are now talking about warming.A few typical examples of this kind of thinking taken at random from recent blogs:.Back in the 70s, they were screaming just as loud about the world becoming a big ice ball as they are today about it becoming a fire ball.Clearly, the world is sometimes getting warmer and sometimes getting cooler, and there are a variety of causes for each.It is black and white thinking to assume that the world is either always warming or always cooling.There are two examples of black and white thinking here, first the assumption that a person is either always a coward or else always brave, second the assumption that all terrorists fit into either one category or the other