Fallacious correlation. This is not based on how much news you watch but how stupid you are. Dumber people who watch the news are affected like this. However, they'd be affected just the same if their work colleagues or friends gave them the stories secondhand. "Well, Rhonda was telling me there was a man in her yard last week..." Nobody mentioned it was the gardener. But now the recipient is paranoid - not because she watched the news (she didn't), but because she's a dolt.
Not necessarily. A number of cognitive heuristics and cognitive biases are at play here, and even intelligent people can fall victim to heuristics that lead to fallacious thinking. First, however, you need to define intelligence and stick with it; otherwise, you may end up with a tautology on your hands (e.g., "Intelligent people are those who think critically about the material with which they are presented."). I don't know which of the cited articles the quoted paragraph is referring to, but seeing whether or not intelligence has a relationship with things like perception of crime rates comes down to dumping it into a regression model and seeing what happens. If the R-square value doesn't change much, then intelligence is probably overcomplicating the model.