I have always been heavy on politics, psychology, and sociology. Having read this thread I am very impressed by the responses.
Do NOT base your opinions off a single news source EVER. Cross reference everything for the facts, and base your opinion off what truly went down and not off what the single sources conclusions are on the subject.
Edit: Statistics, as someone already mentioned, are very easy to manipulate to support your opinion. Take the "statistic" that marijuana is supposedly a gateway drug, if the same question were asked for alcohol, cigarettes, prescription drugs, and coffee, weed would be far away from the gateway drug.