Smokers in the 1960s, when medical research on the harms of smoking was less clear, were more likely to be interested in reading an article titled "Smoking does not cause lung cancer" rather than "Smoking causes lung cancer."
When we want something to be right, we pay attention only to those things that correspond to our desire. And then, when we draw conclusions from them, we congratulate ourselves on a well-reasoned decision.
This phenomenon is called cognitive distortion or bias.