An interesting video with Ben Goldacre, who unpicks dodgy scientific claims made by scaremongering journalists, dubious government reports, pharmaceutical corporations, PR companies and quacks.
As he says “Positive findings are around twice as likely to be published as negative findings. This is a cancer at the core of evidence-based medicine”
You can watch the video with subtitles
Also Do Have a look at this webpage
Talks by key people in different fields