It's no secret -- science coverage in the mainstream media is less than stellar, partly because of the rarity of reporters who are versed in science, and partly because the various newspapers and television news programs see any kind of news as an opportunity to grind whatever political axe they happen to favor.
Of course, some science news items are seemingly tailor-made for this: global warming, evolution, cryptozoology, extraterrestrial beings, and lately the controversially-named God particle (the boson) being specific examples.
Of course, news programs like people to make unequivocal statements, rather than seemingly hedge, like scientists are trained to do.
Then there's the confusion of correlation and causality. Reporters jump to conclusions too readily about this. So there's a lot of science reporting off the top of peoples' heads.